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1 | /************************************************************************** | |
2 | * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
3 | * * | |
4 | * Author: The ALICE Off-line Project. * | |
5 | * Contributors are mentioned in the code where appropriate. * | |
6 | * * | |
7 | * Permission to use, copy, modify and distribute this software and its * | |
8 | * documentation strictly for non-commercial purposes is hereby granted * | |
9 | * without fee, provided that the above copyright notice appears in all * | |
10 | * copies and that both the copyright notice and this permission notice * | |
11 | * appear in the supporting documentation. The authors make no claims * | |
12 | * about the suitability of this software for any purpose. It is * | |
13 | * provided "as is" without express or implied warranty. * | |
14 | **************************************************************************/ | |
15 | //----------------------------------------------------------------- | |
16 | // Implementation of the ESD track class | |
17 | // ESD = Event Summary Data | |
18 | // This is the class to deal with during the phisics analysis of data | |
19 | // Origin: Iouri Belikov, CERN | |
20 | // e-mail: Jouri.Belikov@cern.ch | |
21 | // | |
22 | // | |
23 | // | |
24 | // What do you need to know before starting analysis | |
25 | // (by Marian Ivanov: marian.ivanov@cern.ch) | |
26 | // | |
27 | // | |
28 | // AliESDtrack: | |
29 | // 1. What is the AliESDtrack | |
30 | // 2. What informations do we store | |
31 | // 3. How to use the information for analysis | |
32 | // | |
33 | // | |
34 | // 1.AliESDtrack is the container of the information about the track/particle | |
35 | // reconstructed during Barrel Tracking. | |
36 | // The track information is propagated from one tracking detector to | |
37 | // other using the functionality of AliESDtrack - Current parameters. | |
38 | // | |
39 | // No global fit model is used. | |
40 | // Barrel tracking use Kalman filtering technique, it gives optimal local | |
41 | // track parameters at given point under certian assumptions. | |
42 | // | |
43 | // Kalman filter take into account additional effect which are | |
44 | // difficult to handle using global fit. | |
45 | // Effects: | |
46 | // a.) Multiple scattering | |
47 | // b.) Energy loss | |
48 | // c.) Non homogenous magnetic field | |
49 | // | |
50 | // In general case, following barrel detectors are contributing to | |
51 | // the Kalman track information: | |
52 | // a. TPC | |
53 | // b. ITS | |
54 | // c. TRD | |
55 | // | |
56 | // In general 3 reconstruction itteration are performed: | |
57 | // 1. Find tracks - sequence TPC->ITS | |
58 | // 2. PropagateBack - sequence ITS->TPC->TRD -> Outer PID detectors | |
59 | // 3. Refit invward - sequence TRD->TPC->ITS | |
60 | // The current tracks are updated after each detector (see bellow). | |
61 | // In specical cases a track sanpshots are stored. | |
62 | // | |
63 | // | |
64 | // For some type of analysis (+visualization) track local parameters at | |
65 | // different position are neccesary. A snapshots during the track | |
66 | // propagation are created. | |
67 | // (See AliExternalTrackParam class for desctiption of variables and | |
68 | // functionality) | |
69 | // Snapshots: | |
70 | // a. Current parameters - class itself (AliExternalTrackParam) | |
71 | // Contributors: general case TRD->TPC->ITS | |
72 | // Preferable usage: Decission - primary or secondary track | |
73 | // NOTICE - By default the track parameters are stored at the DCA point | |
74 | // to the primary vertex. optimal for primary tracks, | |
75 | // far from optimal for secondary tracks. | |
76 | // b. Constrained parameters - Kalman information updated with | |
77 | // the Primary vertex information | |
78 | // Contributors: general case TRD->TPC->ITS | |
79 | // Preferable usage: Use only for tracks selected as primary | |
80 | // NOTICE - not real constrain - taken as additional measurement | |
81 | // with corresponding error | |
82 | // Function: | |
83 | // const AliExternalTrackParam *GetConstrainedParam() const {return fCp;} | |
84 | // c. Inner parameters - Track parameters at inner wall of the TPC | |
85 | // Contributors: general case TRD->TPC | |
86 | // function: | |
87 | // const AliExternalTrackParam *GetInnerParam() const { return fIp;} | |
88 | // | |
89 | // d. TPCinnerparam - contributors - TPC only | |
90 | // Contributors: TPC | |
91 | // Preferable usage: Requested for HBT study | |
92 | // (smaller correlations as using also ITS information) | |
93 | // NOTICE - the track parameters are propagated to the DCA to | |
94 | // to primary vertex | |
95 | // Optimal for primary, far from optimal for secondary tracks | |
96 | // Function: | |
97 | // const AliExternalTrackParam *GetTPCInnerParam() const {return fTPCInner;} | |
98 | // | |
99 | // e. Outer parameters - | |
100 | // Contributors- general case - ITS-> TPC -> TRD | |
101 | // The last point - Outer parameters radius is determined | |
102 | // e.a) Local inclination angle bigger than threshold - | |
103 | // Low momenta tracks | |
104 | // e.a) Catastrofic energy losss in material | |
105 | // e.b) Not further improvement (no space points) | |
106 | // Usage: | |
107 | // a.) Tracking: Starting parameter for Refit inward | |
108 | // b.) Visualization | |
109 | // c.) QA | |
110 | // NOTICE: Should be not used for the physic analysis | |
111 | // Function: | |
112 | // const AliExternalTrackParam *GetOuterParam() const { return fOp;} | |
113 | // | |
114 | //----------------------------------------------------------------- | |
115 | ||
116 | #include <TMath.h> | |
117 | #include <TParticle.h> | |
118 | #include <TDatabasePDG.h> | |
119 | ||
120 | #include "AliESDVertex.h" | |
121 | #include "AliESDtrack.h" | |
122 | #include "AliESDEvent.h" | |
123 | #include "AliKalmanTrack.h" | |
124 | #include "AliVTrack.h" | |
125 | #include "AliLog.h" | |
126 | #include "AliTrackPointArray.h" | |
127 | #include "TPolyMarker3D.h" | |
128 | ||
129 | ClassImp(AliESDtrack) | |
130 | ||
131 | void SetPIDValues(Double_t * dest, const Double_t * src, Int_t n) { | |
132 | // This function copies "n" PID weights from "scr" to "dest" | |
133 | // and normalizes their sum to 1 thus producing conditional probabilities. | |
134 | // The negative weights are set to 0. | |
135 | // In case all the weights are non-positive they are replaced by | |
136 | // uniform probabilities | |
137 | ||
138 | if (n<=0) return; | |
139 | ||
140 | Float_t uniform = 1./(Float_t)n; | |
141 | ||
142 | Float_t sum = 0; | |
143 | for (Int_t i=0; i<n; i++) | |
144 | if (src[i]>=0) { | |
145 | sum+=src[i]; | |
146 | dest[i] = src[i]; | |
147 | } | |
148 | else { | |
149 | dest[i] = 0; | |
150 | } | |
151 | ||
152 | if(sum>0) | |
153 | for (Int_t i=0; i<n; i++) dest[i] /= sum; | |
154 | else | |
155 | for (Int_t i=0; i<n; i++) dest[i] = uniform; | |
156 | } | |
157 | ||
158 | //_______________________________________________________________________ | |
159 | AliESDtrack::AliESDtrack() : | |
160 | AliExternalTrackParam(), | |
161 | fCp(0), | |
162 | fIp(0), | |
163 | fTPCInner(0), | |
164 | fOp(0), | |
165 | fHMPIDp(0), | |
166 | fFriendTrack(new AliESDfriendTrack()), | |
167 | fTPCClusterMap(159),//number of padrows | |
168 | fTPCSharedMap(159),//number of padrows | |
169 | fFlags(0), | |
170 | fID(0), | |
171 | fLabel(0), | |
172 | fITSLabel(0), | |
173 | fTPCLabel(0), | |
174 | fTRDLabel(0), | |
175 | fTOFCalChannel(-1), | |
176 | fTOFindex(-1), | |
177 | fHMPIDqn(0), | |
178 | fHMPIDcluIdx(-1), | |
179 | fCaloIndex(kEMCALNoMatch), | |
180 | fHMPIDtrkTheta(0), | |
181 | fHMPIDtrkPhi(0), | |
182 | fHMPIDsignal(0), | |
183 | fTrackLength(0), | |
184 | fdTPC(0),fzTPC(0), | |
185 | fCddTPC(0),fCdzTPC(0),fCzzTPC(0), | |
186 | fCchi2TPC(0), | |
187 | fD(0),fZ(0), | |
188 | fCdd(0),fCdz(0),fCzz(0), | |
189 | fCchi2(0), | |
190 | fITSchi2(0), | |
191 | fTPCchi2(0), | |
192 | fTPCchi2Iter1(0), | |
193 | fTRDchi2(0), | |
194 | fTOFchi2(0), | |
195 | fHMPIDchi2(0), | |
196 | fGlobalChi2(0), | |
197 | fITSsignal(0), | |
198 | fTPCsignal(0), | |
199 | fTPCsignalS(0), | |
200 | fTRDsignal(0), | |
201 | fTRDQuality(0), | |
202 | fTRDBudget(0), | |
203 | fTOFsignal(99999), | |
204 | fTOFsignalToT(99999), | |
205 | fTOFsignalRaw(99999), | |
206 | fTOFsignalDz(999), | |
207 | fTOFsignalDx(999), | |
208 | fTOFdeltaBC(999), | |
209 | fTOFl0l1(999), | |
210 | fCaloDx(0), | |
211 | fCaloDz(0), | |
212 | fHMPIDtrkX(0), | |
213 | fHMPIDtrkY(0), | |
214 | fHMPIDmipX(0), | |
215 | fHMPIDmipY(0), | |
216 | fTPCncls(0), | |
217 | fTPCnclsF(0), | |
218 | fTPCsignalN(0), | |
219 | fTPCnclsIter1(0), | |
220 | fTPCnclsFIter1(0), | |
221 | fITSncls(0), | |
222 | fITSClusterMap(0), | |
223 | fTRDncls(0), | |
224 | fTRDncls0(0), | |
225 | fTRDntracklets(0), | |
226 | fTRDnSlices(0), | |
227 | fTRDslices(0x0), | |
228 | fVertexID(-2),// -2 means an orphan track | |
229 | fESDEvent(0) | |
230 | { | |
231 | // | |
232 | // The default ESD constructor | |
233 | // | |
234 | Int_t i; | |
235 | for (i=0; i<AliPID::kSPECIES; i++) { | |
236 | fTrackTime[i]=0.; | |
237 | fR[i]=0.; | |
238 | fITSr[i]=0.; | |
239 | fTPCr[i]=0.; | |
240 | fTRDr[i]=0.; | |
241 | fTOFr[i]=0.; | |
242 | fHMPIDr[i]=0.; | |
243 | } | |
244 | ||
245 | for (i=0; i<3; i++) { fKinkIndexes[i]=0;} | |
246 | for (i=0; i<3; i++) { fV0Indexes[i]=0;} | |
247 | for (i=0;i<kTRDnPlanes;i++) { | |
248 | fTRDTimBin[i]=0; | |
249 | } | |
250 | for (i=0;i<4;i++) {fITSdEdxSamples[i]=0.;} | |
251 | for (i=0;i<4;i++) {fTPCPoints[i]=0;} | |
252 | for (i=0;i<3;i++) {fTOFLabel[i]=-1;} | |
253 | for (i=0;i<10;i++) {fTOFInfo[i]=0;} | |
254 | for (i=0;i<12;i++) {fITSModule[i]=-1;} | |
255 | } | |
256 | ||
257 | //_______________________________________________________________________ | |
258 | AliESDtrack::AliESDtrack(const AliESDtrack& track): | |
259 | AliExternalTrackParam(track), | |
260 | fCp(0), | |
261 | fIp(0), | |
262 | fTPCInner(0), | |
263 | fOp(0), | |
264 | fHMPIDp(0), | |
265 | fFriendTrack(0), | |
266 | fTPCClusterMap(track.fTPCClusterMap), | |
267 | fTPCSharedMap(track.fTPCSharedMap), | |
268 | fFlags(track.fFlags), | |
269 | fID(track.fID), | |
270 | fLabel(track.fLabel), | |
271 | fITSLabel(track.fITSLabel), | |
272 | fTPCLabel(track.fTPCLabel), | |
273 | fTRDLabel(track.fTRDLabel), | |
274 | fTOFCalChannel(track.fTOFCalChannel), | |
275 | fTOFindex(track.fTOFindex), | |
276 | fHMPIDqn(track.fHMPIDqn), | |
277 | fHMPIDcluIdx(track.fHMPIDcluIdx), | |
278 | fCaloIndex(track.fCaloIndex), | |
279 | fHMPIDtrkTheta(track.fHMPIDtrkTheta), | |
280 | fHMPIDtrkPhi(track.fHMPIDtrkPhi), | |
281 | fHMPIDsignal(track.fHMPIDsignal), | |
282 | fTrackLength(track.fTrackLength), | |
283 | fdTPC(track.fdTPC),fzTPC(track.fzTPC), | |
284 | fCddTPC(track.fCddTPC),fCdzTPC(track.fCdzTPC),fCzzTPC(track.fCzzTPC), | |
285 | fCchi2TPC(track.fCchi2TPC), | |
286 | fD(track.fD),fZ(track.fZ), | |
287 | fCdd(track.fCdd),fCdz(track.fCdz),fCzz(track.fCzz), | |
288 | fCchi2(track.fCchi2), | |
289 | fITSchi2(track.fITSchi2), | |
290 | fTPCchi2(track.fTPCchi2), | |
291 | fTPCchi2Iter1(track.fTPCchi2Iter1), | |
292 | fTRDchi2(track.fTRDchi2), | |
293 | fTOFchi2(track.fTOFchi2), | |
294 | fHMPIDchi2(track.fHMPIDchi2), | |
295 | fGlobalChi2(track.fGlobalChi2), | |
296 | fITSsignal(track.fITSsignal), | |
297 | fTPCsignal(track.fTPCsignal), | |
298 | fTPCsignalS(track.fTPCsignalS), | |
299 | fTRDsignal(track.fTRDsignal), | |
300 | fTRDQuality(track.fTRDQuality), | |
301 | fTRDBudget(track.fTRDBudget), | |
302 | fTOFsignal(track.fTOFsignal), | |
303 | fTOFsignalToT(track.fTOFsignalToT), | |
304 | fTOFsignalRaw(track.fTOFsignalRaw), | |
305 | fTOFsignalDz(track.fTOFsignalDz), | |
306 | fTOFsignalDx(track.fTOFsignalDx), | |
307 | fTOFdeltaBC(track.fTOFdeltaBC), | |
308 | fTOFl0l1(track.fTOFl0l1), | |
309 | fCaloDx(track.fCaloDx), | |
310 | fCaloDz(track.fCaloDz), | |
311 | fHMPIDtrkX(track.fHMPIDtrkX), | |
312 | fHMPIDtrkY(track.fHMPIDtrkY), | |
313 | fHMPIDmipX(track.fHMPIDmipX), | |
314 | fHMPIDmipY(track.fHMPIDmipY), | |
315 | fTPCncls(track.fTPCncls), | |
316 | fTPCnclsF(track.fTPCnclsF), | |
317 | fTPCsignalN(track.fTPCsignalN), | |
318 | fTPCnclsIter1(track.fTPCnclsIter1), | |
319 | fTPCnclsFIter1(track.fTPCnclsIter1), | |
320 | fITSncls(track.fITSncls), | |
321 | fITSClusterMap(track.fITSClusterMap), | |
322 | fTRDncls(track.fTRDncls), | |
323 | fTRDncls0(track.fTRDncls0), | |
324 | fTRDntracklets(track.fTRDntracklets), | |
325 | fTRDnSlices(track.fTRDnSlices), | |
326 | fTRDslices(0x0), | |
327 | fVertexID(track.fVertexID), | |
328 | fESDEvent(track.fESDEvent) | |
329 | { | |
330 | // | |
331 | //copy constructor | |
332 | // | |
333 | for (Int_t i=0;i<AliPID::kSPECIES;i++) fTrackTime[i]=track.fTrackTime[i]; | |
334 | for (Int_t i=0;i<AliPID::kSPECIES;i++) fR[i]=track.fR[i]; | |
335 | // | |
336 | for (Int_t i=0;i<AliPID::kSPECIES;i++) fITSr[i]=track.fITSr[i]; | |
337 | // | |
338 | for (Int_t i=0;i<AliPID::kSPECIES;i++) fTPCr[i]=track.fTPCr[i]; | |
339 | for (Int_t i=0;i<4;i++) {fITSdEdxSamples[i]=track.fITSdEdxSamples[i];} | |
340 | for (Int_t i=0;i<4;i++) {fTPCPoints[i]=track.fTPCPoints[i];} | |
341 | for (Int_t i=0; i<3;i++) { fKinkIndexes[i]=track.fKinkIndexes[i];} | |
342 | for (Int_t i=0; i<3;i++) { fV0Indexes[i]=track.fV0Indexes[i];} | |
343 | // | |
344 | for (Int_t i=0;i<kTRDnPlanes;i++) { | |
345 | fTRDTimBin[i]=track.fTRDTimBin[i]; | |
346 | } | |
347 | ||
348 | if (fTRDnSlices) { | |
349 | fTRDslices=new Double32_t[fTRDnSlices]; | |
350 | for (Int_t i=0; i<fTRDnSlices; i++) fTRDslices[i]=track.fTRDslices[i]; | |
351 | } | |
352 | ||
353 | for (Int_t i=0;i<AliPID::kSPECIES;i++) fTRDr[i]=track.fTRDr[i]; | |
354 | for (Int_t i=0;i<AliPID::kSPECIES;i++) fTOFr[i]=track.fTOFr[i]; | |
355 | for (Int_t i=0;i<3;i++) fTOFLabel[i]=track.fTOFLabel[i]; | |
356 | for (Int_t i=0;i<10;i++) fTOFInfo[i]=track.fTOFInfo[i]; | |
357 | for (Int_t i=0;i<12;i++) fITSModule[i]=track.fITSModule[i]; | |
358 | for (Int_t i=0;i<AliPID::kSPECIES;i++) fHMPIDr[i]=track.fHMPIDr[i]; | |
359 | ||
360 | if (track.fCp) fCp=new AliExternalTrackParam(*track.fCp); | |
361 | if (track.fIp) fIp=new AliExternalTrackParam(*track.fIp); | |
362 | if (track.fTPCInner) fTPCInner=new AliExternalTrackParam(*track.fTPCInner); | |
363 | if (track.fOp) fOp=new AliExternalTrackParam(*track.fOp); | |
364 | if (track.fHMPIDp) fHMPIDp=new AliExternalTrackParam(*track.fHMPIDp); | |
365 | ||
366 | if (track.fFriendTrack) fFriendTrack=new AliESDfriendTrack(*(track.fFriendTrack)); | |
367 | } | |
368 | ||
369 | //_______________________________________________________________________ | |
370 | AliESDtrack::AliESDtrack(const AliVTrack *track) : | |
371 | AliExternalTrackParam(track), | |
372 | fCp(0), | |
373 | fIp(0), | |
374 | fTPCInner(0), | |
375 | fOp(0), | |
376 | fHMPIDp(0), | |
377 | fFriendTrack(0), | |
378 | fTPCClusterMap(159),//number of padrows | |
379 | fTPCSharedMap(159),//number of padrows | |
380 | fFlags(0), | |
381 | fID(), | |
382 | fLabel(0), | |
383 | fITSLabel(0), | |
384 | fTPCLabel(0), | |
385 | fTRDLabel(0), | |
386 | fTOFCalChannel(-1), | |
387 | fTOFindex(-1), | |
388 | fHMPIDqn(0), | |
389 | fHMPIDcluIdx(-1), | |
390 | fCaloIndex(kEMCALNoMatch), | |
391 | fHMPIDtrkTheta(0), | |
392 | fHMPIDtrkPhi(0), | |
393 | fHMPIDsignal(0), | |
394 | fTrackLength(0), | |
395 | fdTPC(0),fzTPC(0), | |
396 | fCddTPC(0),fCdzTPC(0),fCzzTPC(0), | |
397 | fCchi2TPC(0), | |
398 | fD(0),fZ(0), | |
399 | fCdd(0),fCdz(0),fCzz(0), | |
400 | fCchi2(0), | |
401 | fITSchi2(0), | |
402 | fTPCchi2(0), | |
403 | fTPCchi2Iter1(0), | |
404 | fTRDchi2(0), | |
405 | fTOFchi2(0), | |
406 | fHMPIDchi2(0), | |
407 | fGlobalChi2(0), | |
408 | fITSsignal(0), | |
409 | fTPCsignal(0), | |
410 | fTPCsignalS(0), | |
411 | fTRDsignal(0), | |
412 | fTRDQuality(0), | |
413 | fTRDBudget(0), | |
414 | fTOFsignal(99999), | |
415 | fTOFsignalToT(99999), | |
416 | fTOFsignalRaw(99999), | |
417 | fTOFsignalDz(999), | |
418 | fTOFsignalDx(999), | |
419 | fTOFdeltaBC(999), | |
420 | fTOFl0l1(999), | |
421 | fCaloDx(0), | |
422 | fCaloDz(0), | |
423 | fHMPIDtrkX(0), | |
424 | fHMPIDtrkY(0), | |
425 | fHMPIDmipX(0), | |
426 | fHMPIDmipY(0), | |
427 | fTPCncls(0), | |
428 | fTPCnclsF(0), | |
429 | fTPCsignalN(0), | |
430 | fTPCnclsIter1(0), | |
431 | fTPCnclsFIter1(0), | |
432 | fITSncls(0), | |
433 | fITSClusterMap(0), | |
434 | fTRDncls(0), | |
435 | fTRDncls0(0), | |
436 | fTRDntracklets(0), | |
437 | fTRDnSlices(0), | |
438 | fTRDslices(0x0), | |
439 | fVertexID(-2), // -2 means an orphan track | |
440 | fESDEvent(0) | |
441 | { | |
442 | // | |
443 | // ESD track from AliVTrack. | |
444 | // This is not a copy constructor ! | |
445 | // | |
446 | ||
447 | if (track->InheritsFrom("AliExternalTrackParam")) { | |
448 | AliError("This is not a copy constructor. Use AliESDtrack(const AliESDtrack &) !"); | |
449 | AliWarning("Calling the default constructor..."); | |
450 | AliESDtrack(); | |
451 | return; | |
452 | } | |
453 | ||
454 | // Reset all the arrays | |
455 | Int_t i; | |
456 | for (i=0; i<AliPID::kSPECIES; i++) { | |
457 | fTrackTime[i]=0.; | |
458 | fR[i]=0.; | |
459 | fITSr[i]=0.; | |
460 | fTPCr[i]=0.; | |
461 | fTRDr[i]=0.; | |
462 | fTOFr[i]=0.; | |
463 | fHMPIDr[i]=0.; | |
464 | } | |
465 | ||
466 | for (i=0; i<3; i++) { fKinkIndexes[i]=0;} | |
467 | for (i=0; i<3; i++) { fV0Indexes[i]=-1;} | |
468 | for (i=0;i<kTRDnPlanes;i++) { | |
469 | fTRDTimBin[i]=0; | |
470 | } | |
471 | for (i=0;i<4;i++) {fITSdEdxSamples[i]=0.;} | |
472 | for (i=0;i<4;i++) {fTPCPoints[i]=0;} | |
473 | for (i=0;i<3;i++) {fTOFLabel[i]=-1;} | |
474 | for (i=0;i<10;i++) {fTOFInfo[i]=0;} | |
475 | for (i=0;i<12;i++) {fITSModule[i]=-1;} | |
476 | ||
477 | // Set the ID | |
478 | SetID(track->GetID()); | |
479 | ||
480 | // Set ITS cluster map | |
481 | fITSClusterMap=track->GetITSClusterMap(); | |
482 | ||
483 | fITSncls=0; | |
484 | for(i=0; i<6; i++) { | |
485 | if(HasPointOnITSLayer(i)) fITSncls++; | |
486 | } | |
487 | ||
488 | // Set the combined PID | |
489 | const Double_t *pid = track->PID(); | |
490 | if(pid){ | |
491 | for (i=0; i<AliPID::kSPECIES; i++) fR[i]=pid[i]; | |
492 | } | |
493 | // AliESD track label | |
494 | SetLabel(track->GetLabel()); | |
495 | // Set the status | |
496 | SetStatus(track->GetStatus()); | |
497 | } | |
498 | ||
499 | //_______________________________________________________________________ | |
500 | AliESDtrack::AliESDtrack(TParticle * part) : | |
501 | AliExternalTrackParam(), | |
502 | fCp(0), | |
503 | fIp(0), | |
504 | fTPCInner(0), | |
505 | fOp(0), | |
506 | fHMPIDp(0), | |
507 | fFriendTrack(0), | |
508 | fTPCClusterMap(159),//number of padrows | |
509 | fTPCSharedMap(159),//number of padrows | |
510 | fFlags(0), | |
511 | fID(0), | |
512 | fLabel(0), | |
513 | fITSLabel(0), | |
514 | fTPCLabel(0), | |
515 | fTRDLabel(0), | |
516 | fTOFCalChannel(-1), | |
517 | fTOFindex(-1), | |
518 | fHMPIDqn(0), | |
519 | fHMPIDcluIdx(-1), | |
520 | fCaloIndex(kEMCALNoMatch), | |
521 | fHMPIDtrkTheta(0), | |
522 | fHMPIDtrkPhi(0), | |
523 | fHMPIDsignal(0), | |
524 | fTrackLength(0), | |
525 | fdTPC(0),fzTPC(0), | |
526 | fCddTPC(0),fCdzTPC(0),fCzzTPC(0), | |
527 | fCchi2TPC(0), | |
528 | fD(0),fZ(0), | |
529 | fCdd(0),fCdz(0),fCzz(0), | |
530 | fCchi2(0), | |
531 | fITSchi2(0), | |
532 | fTPCchi2(0), | |
533 | fTPCchi2Iter1(0), | |
534 | fTRDchi2(0), | |
535 | fTOFchi2(0), | |
536 | fHMPIDchi2(0), | |
537 | fGlobalChi2(0), | |
538 | fITSsignal(0), | |
539 | fTPCsignal(0), | |
540 | fTPCsignalS(0), | |
541 | fTRDsignal(0), | |
542 | fTRDQuality(0), | |
543 | fTRDBudget(0), | |
544 | fTOFsignal(99999), | |
545 | fTOFsignalToT(99999), | |
546 | fTOFsignalRaw(99999), | |
547 | fTOFsignalDz(999), | |
548 | fTOFsignalDx(999), | |
549 | fTOFdeltaBC(999), | |
550 | fTOFl0l1(999), | |
551 | fCaloDx(0), | |
552 | fCaloDz(0), | |
553 | fHMPIDtrkX(0), | |
554 | fHMPIDtrkY(0), | |
555 | fHMPIDmipX(0), | |
556 | fHMPIDmipY(0), | |
557 | fTPCncls(0), | |
558 | fTPCnclsF(0), | |
559 | fTPCsignalN(0), | |
560 | fTPCnclsIter1(0), | |
561 | fTPCnclsFIter1(0), | |
562 | fITSncls(0), | |
563 | fITSClusterMap(0), | |
564 | fTRDncls(0), | |
565 | fTRDncls0(0), | |
566 | fTRDntracklets(0), | |
567 | fTRDnSlices(0), | |
568 | fTRDslices(0x0), | |
569 | fVertexID(-2), // -2 means an orphan track | |
570 | fESDEvent(0) | |
571 | { | |
572 | // | |
573 | // ESD track from TParticle | |
574 | // | |
575 | ||
576 | // Reset all the arrays | |
577 | Int_t i; | |
578 | for (i=0; i<AliPID::kSPECIES; i++) { | |
579 | fTrackTime[i]=0.; | |
580 | fR[i]=0.; | |
581 | fITSr[i]=0.; | |
582 | fTPCr[i]=0.; | |
583 | fTRDr[i]=0.; | |
584 | fTOFr[i]=0.; | |
585 | fHMPIDr[i]=0.; | |
586 | } | |
587 | ||
588 | for (i=0; i<3; i++) { fKinkIndexes[i]=0;} | |
589 | for (i=0; i<3; i++) { fV0Indexes[i]=-1;} | |
590 | for (i=0;i<kTRDnPlanes;i++) { | |
591 | fTRDTimBin[i]=0; | |
592 | } | |
593 | for (i=0;i<4;i++) {fITSdEdxSamples[i]=0.;} | |
594 | for (i=0;i<4;i++) {fTPCPoints[i]=0;} | |
595 | for (i=0;i<3;i++) {fTOFLabel[i]=-1;} | |
596 | for (i=0;i<10;i++) {fTOFInfo[i]=0;} | |
597 | for (i=0;i<12;i++) {fITSModule[i]=-1;} | |
598 | ||
599 | // Calculate the AliExternalTrackParam content | |
600 | ||
601 | Double_t xref; | |
602 | Double_t alpha; | |
603 | Double_t param[5]; | |
604 | Double_t covar[15]; | |
605 | ||
606 | // Calculate alpha: the rotation angle of the corresponding local system (TPC sector) | |
607 | alpha = part->Phi()*180./TMath::Pi(); | |
608 | if (alpha<0) alpha+= 360.; | |
609 | if (alpha>360) alpha -= 360.; | |
610 | ||
611 | Int_t sector = (Int_t)(alpha/20.); | |
612 | alpha = 10. + 20.*sector; | |
613 | alpha /= 180; | |
614 | alpha *= TMath::Pi(); | |
615 | ||
616 | // Covariance matrix: no errors, the parameters are exact | |
617 | for (i=0; i<15; i++) covar[i]=0.; | |
618 | ||
619 | // Get the vertex of origin and the momentum | |
620 | TVector3 ver(part->Vx(),part->Vy(),part->Vz()); | |
621 | TVector3 mom(part->Px(),part->Py(),part->Pz()); | |
622 | ||
623 | // Rotate to the local coordinate system (TPC sector) | |
624 | ver.RotateZ(-alpha); | |
625 | mom.RotateZ(-alpha); | |
626 | ||
627 | // X of the referense plane | |
628 | xref = ver.X(); | |
629 | ||
630 | Int_t pdgCode = part->GetPdgCode(); | |
631 | ||
632 | Double_t charge = | |
633 | TDatabasePDG::Instance()->GetParticle(pdgCode)->Charge(); | |
634 | ||
635 | param[0] = ver.Y(); | |
636 | param[1] = ver.Z(); | |
637 | param[2] = TMath::Sin(mom.Phi()); | |
638 | param[3] = mom.Pz()/mom.Pt(); | |
639 | param[4] = TMath::Sign(1/mom.Pt(),charge); | |
640 | ||
641 | // Set AliExternalTrackParam | |
642 | Set(xref, alpha, param, covar); | |
643 | ||
644 | // Set the PID | |
645 | Int_t indexPID = 99; | |
646 | ||
647 | switch (TMath::Abs(pdgCode)) { | |
648 | ||
649 | case 11: // electron | |
650 | indexPID = 0; | |
651 | break; | |
652 | ||
653 | case 13: // muon | |
654 | indexPID = 1; | |
655 | break; | |
656 | ||
657 | case 211: // pion | |
658 | indexPID = 2; | |
659 | break; | |
660 | ||
661 | case 321: // kaon | |
662 | indexPID = 3; | |
663 | break; | |
664 | ||
665 | case 2212: // proton | |
666 | indexPID = 4; | |
667 | break; | |
668 | ||
669 | default: | |
670 | break; | |
671 | } | |
672 | ||
673 | // If the particle is not e,mu,pi,K or p the PID probabilities are set to 0 | |
674 | if (indexPID < AliPID::kSPECIES) { | |
675 | fR[indexPID]=1.; | |
676 | fITSr[indexPID]=1.; | |
677 | fTPCr[indexPID]=1.; | |
678 | fTRDr[indexPID]=1.; | |
679 | fTOFr[indexPID]=1.; | |
680 | fHMPIDr[indexPID]=1.; | |
681 | ||
682 | } | |
683 | // AliESD track label | |
684 | SetLabel(part->GetUniqueID()); | |
685 | ||
686 | } | |
687 | ||
688 | //_______________________________________________________________________ | |
689 | AliESDtrack::~AliESDtrack(){ | |
690 | // | |
691 | // This is destructor according Coding Conventrions | |
692 | // | |
693 | //printf("Delete track\n"); | |
694 | delete fIp; | |
695 | delete fTPCInner; | |
696 | delete fOp; | |
697 | delete fHMPIDp; | |
698 | delete fCp; | |
699 | delete fFriendTrack; | |
700 | if(fTRDnSlices) | |
701 | delete[] fTRDslices; | |
702 | } | |
703 | ||
704 | AliESDtrack &AliESDtrack::operator=(const AliESDtrack &source){ | |
705 | ||
706 | ||
707 | if(&source == this) return *this; | |
708 | AliExternalTrackParam::operator=(source); | |
709 | ||
710 | ||
711 | if(source.fCp){ | |
712 | // we have the trackparam: assign or copy construct | |
713 | if(fCp)*fCp = *source.fCp; | |
714 | else fCp = new AliExternalTrackParam(*source.fCp); | |
715 | } | |
716 | else{ | |
717 | // no track param delete the old one | |
718 | if(fCp)delete fCp; | |
719 | fCp = 0; | |
720 | } | |
721 | ||
722 | if(source.fIp){ | |
723 | // we have the trackparam: assign or copy construct | |
724 | if(fIp)*fIp = *source.fIp; | |
725 | else fIp = new AliExternalTrackParam(*source.fIp); | |
726 | } | |
727 | else{ | |
728 | // no track param delete the old one | |
729 | if(fIp)delete fIp; | |
730 | fIp = 0; | |
731 | } | |
732 | ||
733 | ||
734 | if(source.fTPCInner){ | |
735 | // we have the trackparam: assign or copy construct | |
736 | if(fTPCInner) *fTPCInner = *source.fTPCInner; | |
737 | else fTPCInner = new AliExternalTrackParam(*source.fTPCInner); | |
738 | } | |
739 | else{ | |
740 | // no track param delete the old one | |
741 | if(fTPCInner)delete fTPCInner; | |
742 | fTPCInner = 0; | |
743 | } | |
744 | ||
745 | ||
746 | if(source.fOp){ | |
747 | // we have the trackparam: assign or copy construct | |
748 | if(fOp) *fOp = *source.fOp; | |
749 | else fOp = new AliExternalTrackParam(*source.fOp); | |
750 | } | |
751 | else{ | |
752 | // no track param delete the old one | |
753 | if(fOp)delete fOp; | |
754 | fOp = 0; | |
755 | } | |
756 | ||
757 | ||
758 | if(source.fHMPIDp){ | |
759 | // we have the trackparam: assign or copy construct | |
760 | if(fHMPIDp) *fHMPIDp = *source.fHMPIDp; | |
761 | else fHMPIDp = new AliExternalTrackParam(*source.fHMPIDp); | |
762 | } | |
763 | else{ | |
764 | // no track param delete the old one | |
765 | if(fHMPIDp)delete fHMPIDp; | |
766 | fHMPIDp = 0; | |
767 | } | |
768 | ||
769 | ||
770 | // copy also the friend track | |
771 | // use copy constructor | |
772 | if(source.fFriendTrack){ | |
773 | // we have the trackparam: assign or copy construct | |
774 | delete fFriendTrack; fFriendTrack=new AliESDfriendTrack(*source.fFriendTrack); | |
775 | } | |
776 | else{ | |
777 | // no track param delete the old one | |
778 | delete fFriendTrack; fFriendTrack= 0; | |
779 | } | |
780 | ||
781 | fTPCClusterMap = source.fTPCClusterMap; | |
782 | fTPCSharedMap = source.fTPCSharedMap; | |
783 | // the simple stuff | |
784 | fFlags = source.fFlags; | |
785 | fID = source.fID; | |
786 | fLabel = source.fLabel; | |
787 | fITSLabel = source.fITSLabel; | |
788 | for(int i = 0; i< 12;++i){ | |
789 | fITSModule[i] = source.fITSModule[i]; | |
790 | } | |
791 | fTPCLabel = source.fTPCLabel; | |
792 | fTRDLabel = source.fTRDLabel; | |
793 | for(int i = 0; i< 3;++i){ | |
794 | fTOFLabel[i] = source.fTOFLabel[i]; | |
795 | } | |
796 | fTOFCalChannel = source.fTOFCalChannel; | |
797 | fTOFindex = source.fTOFindex; | |
798 | fHMPIDqn = source.fHMPIDqn; | |
799 | fHMPIDcluIdx = source.fHMPIDcluIdx; | |
800 | fCaloIndex = source.fCaloIndex; | |
801 | ||
802 | for(int i = 0; i< 3;++i){ | |
803 | fKinkIndexes[i] = source.fKinkIndexes[i]; | |
804 | fV0Indexes[i] = source.fV0Indexes[i]; | |
805 | } | |
806 | ||
807 | for(int i = 0; i< AliPID::kSPECIES;++i){ | |
808 | fR[i] = source.fR[i]; | |
809 | fITSr[i] = source.fITSr[i]; | |
810 | fTPCr[i] = source.fTPCr[i]; | |
811 | fTRDr[i] = source.fTRDr[i]; | |
812 | fTOFr[i] = source.fTOFr[i]; | |
813 | fHMPIDr[i] = source.fHMPIDr[i]; | |
814 | fTrackTime[i] = source.fTrackTime[i]; | |
815 | } | |
816 | ||
817 | fHMPIDtrkTheta = source.fHMPIDtrkTheta; | |
818 | fHMPIDtrkPhi = source.fHMPIDtrkPhi; | |
819 | fHMPIDsignal = source.fHMPIDsignal; | |
820 | ||
821 | ||
822 | fTrackLength = source. fTrackLength; | |
823 | fdTPC = source.fdTPC; | |
824 | fzTPC = source.fzTPC; | |
825 | fCddTPC = source.fCddTPC; | |
826 | fCdzTPC = source.fCdzTPC; | |
827 | fCzzTPC = source.fCzzTPC; | |
828 | fCchi2TPC = source.fCchi2TPC; | |
829 | ||
830 | fD = source.fD; | |
831 | fZ = source.fZ; | |
832 | fCdd = source.fCdd; | |
833 | fCdz = source.fCdz; | |
834 | fCzz = source.fCzz; | |
835 | fCchi2 = source.fCchi2; | |
836 | ||
837 | fITSchi2 = source.fITSchi2; | |
838 | fTPCchi2 = source.fTPCchi2; | |
839 | fTPCchi2Iter1 = source.fTPCchi2Iter1; | |
840 | fTRDchi2 = source.fTRDchi2; | |
841 | fTOFchi2 = source.fTOFchi2; | |
842 | fHMPIDchi2 = source.fHMPIDchi2; | |
843 | ||
844 | fGlobalChi2 = source.fGlobalChi2; | |
845 | ||
846 | fITSsignal = source.fITSsignal; | |
847 | for (Int_t i=0;i<4;i++) {fITSdEdxSamples[i]=source.fITSdEdxSamples[i];} | |
848 | fTPCsignal = source.fTPCsignal; | |
849 | fTPCsignalS = source.fTPCsignalS; | |
850 | for(int i = 0; i< 4;++i){ | |
851 | fTPCPoints[i] = source.fTPCPoints[i]; | |
852 | } | |
853 | fTRDsignal = source.fTRDsignal; | |
854 | ||
855 | for(int i = 0;i < kTRDnPlanes;++i){ | |
856 | fTRDTimBin[i] = source.fTRDTimBin[i]; | |
857 | } | |
858 | ||
859 | if(fTRDnSlices) | |
860 | delete[] fTRDslices; | |
861 | fTRDslices=0; | |
862 | fTRDnSlices=source.fTRDnSlices; | |
863 | if (fTRDnSlices) { | |
864 | fTRDslices=new Double32_t[fTRDnSlices]; | |
865 | for(int j = 0;j < fTRDnSlices;++j) fTRDslices[j] = source.fTRDslices[j]; | |
866 | } | |
867 | ||
868 | fTRDQuality = source.fTRDQuality; | |
869 | fTRDBudget = source.fTRDBudget; | |
870 | fTOFsignal = source.fTOFsignal; | |
871 | fTOFsignalToT = source.fTOFsignalToT; | |
872 | fTOFsignalRaw = source.fTOFsignalRaw; | |
873 | fTOFsignalDz = source.fTOFsignalDz; | |
874 | fTOFsignalDx = source.fTOFsignalDx; | |
875 | fTOFdeltaBC = source.fTOFdeltaBC; | |
876 | fTOFl0l1 = source.fTOFl0l1; | |
877 | ||
878 | for(int i = 0;i<10;++i){ | |
879 | fTOFInfo[i] = source.fTOFInfo[i]; | |
880 | } | |
881 | ||
882 | fHMPIDtrkX = source.fHMPIDtrkX; | |
883 | fHMPIDtrkY = source.fHMPIDtrkY; | |
884 | fHMPIDmipX = source.fHMPIDmipX; | |
885 | fHMPIDmipY = source.fHMPIDmipY; | |
886 | ||
887 | fTPCncls = source.fTPCncls; | |
888 | fTPCnclsF = source.fTPCnclsF; | |
889 | fTPCsignalN = source.fTPCsignalN; | |
890 | fTPCnclsIter1 = source.fTPCnclsIter1; | |
891 | fTPCnclsFIter1 = source.fTPCnclsFIter1; | |
892 | ||
893 | fITSncls = source.fITSncls; | |
894 | fITSClusterMap = source.fITSClusterMap; | |
895 | fTRDncls = source.fTRDncls; | |
896 | fTRDncls0 = source.fTRDncls0; | |
897 | fTRDntracklets = source.fTRDntracklets; | |
898 | fVertexID = source.fVertexID; | |
899 | return *this; | |
900 | } | |
901 | ||
902 | ||
903 | ||
904 | void AliESDtrack::Copy(TObject &obj) const { | |
905 | ||
906 | // this overwrites the virtual TOBject::Copy() | |
907 | // to allow run time copying without casting | |
908 | // in AliESDEvent | |
909 | ||
910 | if(this==&obj)return; | |
911 | AliESDtrack *robj = dynamic_cast<AliESDtrack*>(&obj); | |
912 | if(!robj)return; // not an AliESDtrack | |
913 | *robj = *this; | |
914 | ||
915 | } | |
916 | ||
917 | ||
918 | ||
919 | void AliESDtrack::AddCalibObject(TObject * object){ | |
920 | // | |
921 | // add calib object to the list | |
922 | // | |
923 | if (!fFriendTrack) fFriendTrack = new AliESDfriendTrack; | |
924 | fFriendTrack->AddCalibObject(object); | |
925 | } | |
926 | ||
927 | TObject * AliESDtrack::GetCalibObject(Int_t index){ | |
928 | // | |
929 | // return calib objct at given position | |
930 | // | |
931 | if (!fFriendTrack) return 0; | |
932 | return fFriendTrack->GetCalibObject(index); | |
933 | } | |
934 | ||
935 | ||
936 | Bool_t AliESDtrack::FillTPCOnlyTrack(AliESDtrack &track){ | |
937 | ||
938 | // Fills the information of the TPC-only first reconstruction pass | |
939 | // into the passed ESDtrack object. For consistency fTPCInner is also filled | |
940 | // again | |
941 | ||
942 | ||
943 | ||
944 | // For data produced before r26675 | |
945 | // RelateToVertexTPC was not properly called during reco | |
946 | // so you'll have to call it again, before FillTPCOnlyTrack | |
947 | // Float_t p[2],cov[3]; | |
948 | // track->GetImpactParametersTPC(p,cov); | |
949 | // if(p[0]==0&&p[1]==0) // <- Default values | |
950 | // track->RelateToVertexTPC(esd->GetPrimaryVertexTPC(),esd->GetMagneticField(),kVeryBig); | |
951 | ||
952 | ||
953 | if(!fTPCInner)return kFALSE; | |
954 | ||
955 | // fill the TPC track params to the global track parameters | |
956 | track.Set(fTPCInner->GetX(),fTPCInner->GetAlpha(),fTPCInner->GetParameter(),fTPCInner->GetCovariance()); | |
957 | track.fD = fdTPC; | |
958 | track.fZ = fzTPC; | |
959 | track.fCdd = fCddTPC; | |
960 | track.fCdz = fCdzTPC; | |
961 | track.fCzz = fCzzTPC; | |
962 | ||
963 | // copy the TPCinner parameters | |
964 | if(track.fTPCInner) *track.fTPCInner = *fTPCInner; | |
965 | else track.fTPCInner = new AliExternalTrackParam(*fTPCInner); | |
966 | track.fdTPC = fdTPC; | |
967 | track.fzTPC = fzTPC; | |
968 | track.fCddTPC = fCddTPC; | |
969 | track.fCdzTPC = fCdzTPC; | |
970 | track.fCzzTPC = fCzzTPC; | |
971 | track.fCchi2TPC = fCchi2TPC; | |
972 | ||
973 | ||
974 | // copy all other TPC specific parameters | |
975 | ||
976 | // replace label by TPC label | |
977 | track.fLabel = fTPCLabel; | |
978 | track.fTPCLabel = fTPCLabel; | |
979 | ||
980 | track.fTPCchi2 = fTPCchi2; | |
981 | track.fTPCchi2Iter1 = fTPCchi2Iter1; | |
982 | track.fTPCsignal = fTPCsignal; | |
983 | track.fTPCsignalS = fTPCsignalS; | |
984 | for(int i = 0;i<4;++i)track.fTPCPoints[i] = fTPCPoints[i]; | |
985 | ||
986 | track.fTPCncls = fTPCncls; | |
987 | track.fTPCnclsF = fTPCnclsF; | |
988 | track.fTPCsignalN = fTPCsignalN; | |
989 | track.fTPCnclsIter1 = fTPCnclsIter1; | |
990 | track.fTPCnclsFIter1 = fTPCnclsFIter1; | |
991 | ||
992 | // PID | |
993 | for(int i=0;i<AliPID::kSPECIES;++i){ | |
994 | track.fTPCr[i] = fTPCr[i]; | |
995 | // combined PID is TPC only! | |
996 | track.fR[i] = fTPCr[i]; | |
997 | } | |
998 | track.fTPCClusterMap = fTPCClusterMap; | |
999 | track.fTPCSharedMap = fTPCSharedMap; | |
1000 | ||
1001 | ||
1002 | // reset the flags | |
1003 | track.fFlags = kTPCin; | |
1004 | track.fID = fID; | |
1005 | ||
1006 | track.fFlags |= fFlags & kTPCpid; //copy the TPCpid status flag | |
1007 | ||
1008 | for (Int_t i=0;i<3;i++) track.fKinkIndexes[i] = fKinkIndexes[i]; | |
1009 | ||
1010 | return kTRUE; | |
1011 | ||
1012 | } | |
1013 | ||
1014 | //_______________________________________________________________________ | |
1015 | void AliESDtrack::MakeMiniESDtrack(){ | |
1016 | // Resets everything except | |
1017 | // fFlags: Reconstruction status flags | |
1018 | // fLabel: Track label | |
1019 | // fID: Unique ID of the track | |
1020 | // Impact parameter information | |
1021 | // fR[AliPID::kSPECIES]: combined "detector response probability" | |
1022 | // Running track parameters in the base class (AliExternalTrackParam) | |
1023 | ||
1024 | fTrackLength = 0; | |
1025 | ||
1026 | for (Int_t i=0;i<AliPID::kSPECIES;i++) fTrackTime[i] = 0; | |
1027 | ||
1028 | // Reset track parameters constrained to the primary vertex | |
1029 | delete fCp;fCp = 0; | |
1030 | ||
1031 | // Reset track parameters at the inner wall of TPC | |
1032 | delete fIp;fIp = 0; | |
1033 | delete fTPCInner;fTPCInner=0; | |
1034 | // Reset track parameters at the inner wall of the TRD | |
1035 | delete fOp;fOp = 0; | |
1036 | // Reset track parameters at the HMPID | |
1037 | delete fHMPIDp;fHMPIDp = 0; | |
1038 | ||
1039 | ||
1040 | // Reset ITS track related information | |
1041 | fITSchi2 = 0; | |
1042 | fITSncls = 0; | |
1043 | fITSClusterMap=0; | |
1044 | fITSsignal = 0; | |
1045 | for (Int_t i=0;i<4;i++) fITSdEdxSamples[i] = 0.; | |
1046 | for (Int_t i=0;i<AliPID::kSPECIES;i++) fITSr[i]=0; | |
1047 | fITSLabel = 0; | |
1048 | ||
1049 | // Reset TPC related track information | |
1050 | fTPCchi2 = 0; | |
1051 | fTPCchi2Iter1 = 0; | |
1052 | fTPCncls = 0; | |
1053 | fTPCnclsF = 0; | |
1054 | fTPCnclsIter1 = 0; | |
1055 | fTPCnclsFIter1 = 0; | |
1056 | fTPCClusterMap = 0; | |
1057 | fTPCSharedMap = 0; | |
1058 | fTPCsignal= 0; | |
1059 | fTPCsignalS= 0; | |
1060 | fTPCsignalN= 0; | |
1061 | for (Int_t i=0;i<AliPID::kSPECIES;i++) fTPCr[i]=0; | |
1062 | fTPCLabel=0; | |
1063 | for (Int_t i=0;i<4;i++) fTPCPoints[i] = 0; | |
1064 | for (Int_t i=0; i<3;i++) fKinkIndexes[i] = 0; | |
1065 | for (Int_t i=0; i<3;i++) fV0Indexes[i] = 0; | |
1066 | ||
1067 | // Reset TRD related track information | |
1068 | fTRDchi2 = 0; | |
1069 | fTRDncls = 0; | |
1070 | fTRDncls0 = 0; | |
1071 | fTRDsignal = 0; | |
1072 | for (Int_t i=0;i<kTRDnPlanes;i++) { | |
1073 | fTRDTimBin[i] = 0; | |
1074 | } | |
1075 | for (Int_t i=0;i<AliPID::kSPECIES;i++) fTRDr[i] = 0; | |
1076 | fTRDLabel = 0; | |
1077 | fTRDQuality = 0; | |
1078 | fTRDntracklets = 0; | |
1079 | if(fTRDnSlices) | |
1080 | delete[] fTRDslices; | |
1081 | fTRDslices=0x0; | |
1082 | fTRDnSlices=0; | |
1083 | fTRDBudget = 0; | |
1084 | ||
1085 | // Reset TOF related track information | |
1086 | fTOFchi2 = 0; | |
1087 | fTOFindex = -1; | |
1088 | fTOFsignal = 99999; | |
1089 | fTOFCalChannel = -1; | |
1090 | fTOFsignalToT = 99999; | |
1091 | fTOFsignalRaw = 99999; | |
1092 | fTOFsignalDz = 999; | |
1093 | fTOFsignalDx = 999; | |
1094 | fTOFdeltaBC = 999; | |
1095 | fTOFl0l1 = 999; | |
1096 | for (Int_t i=0;i<AliPID::kSPECIES;i++) fTOFr[i] = 0; | |
1097 | for (Int_t i=0;i<3;i++) fTOFLabel[i] = -1; | |
1098 | for (Int_t i=0;i<10;i++) fTOFInfo[i] = 0; | |
1099 | ||
1100 | // Reset HMPID related track information | |
1101 | fHMPIDchi2 = 0; | |
1102 | fHMPIDqn = 0; | |
1103 | fHMPIDcluIdx = -1; | |
1104 | fHMPIDsignal = 0; | |
1105 | for (Int_t i=0;i<AliPID::kSPECIES;i++) fHMPIDr[i] = 0; | |
1106 | fHMPIDtrkTheta = 0; | |
1107 | fHMPIDtrkPhi = 0; | |
1108 | fHMPIDtrkX = 0; | |
1109 | fHMPIDtrkY = 0; | |
1110 | fHMPIDmipX = 0; | |
1111 | fHMPIDmipY = 0; | |
1112 | fCaloIndex = kEMCALNoMatch; | |
1113 | ||
1114 | // reset global track chi2 | |
1115 | fGlobalChi2 = 0; | |
1116 | ||
1117 | fVertexID = -2; // an orphan track | |
1118 | ||
1119 | delete fFriendTrack; fFriendTrack = 0; | |
1120 | } | |
1121 | //_______________________________________________________________________ | |
1122 | Double_t AliESDtrack::GetMass() const { | |
1123 | // Returns the mass of the most probable particle type | |
1124 | ||
1125 | Int_t i; | |
1126 | for (i=0; i<AliPID::kSPECIES-1; i++) { | |
1127 | if (fR[i] != fR[i+1]) break; | |
1128 | } | |
1129 | // If all the probabilities are equal, return the pion mass | |
1130 | if (i == AliPID::kSPECIES-1) return AliPID::ParticleMass(AliPID::kPion); | |
1131 | ||
1132 | Float_t max=0.; | |
1133 | Int_t k=-1; | |
1134 | for (i=0; i<AliPID::kSPECIES; i++) { | |
1135 | if (fR[i]>max) {k=i; max=fR[i];} | |
1136 | } | |
1137 | if (k==0) { // dE/dx "crossing points" in the TPC | |
1138 | Double_t p=GetP(); | |
1139 | if ((p>0.38)&&(p<0.48)) | |
1140 | if (fR[0]<fR[3]*10.) return AliPID::ParticleMass(AliPID::kKaon); | |
1141 | if ((p>0.75)&&(p<0.85)) | |
1142 | if (fR[0]<fR[4]*10.) return AliPID::ParticleMass(AliPID::kProton); | |
1143 | return 0.00051; | |
1144 | } | |
1145 | if (k==1) return AliPID::ParticleMass(AliPID::kMuon); | |
1146 | if (k==2||k==-1) return AliPID::ParticleMass(AliPID::kPion); | |
1147 | if (k==3) return AliPID::ParticleMass(AliPID::kKaon); | |
1148 | if (k==4) return AliPID::ParticleMass(AliPID::kProton); | |
1149 | AliWarning("Undefined mass !"); | |
1150 | return AliPID::ParticleMass(AliPID::kPion); | |
1151 | } | |
1152 | ||
1153 | //______________________________________________________________________________ | |
1154 | Double_t AliESDtrack::M() const | |
1155 | { | |
1156 | // Returns the assumed mass | |
1157 | // (the pion mass, if the particle can't be identified properly). | |
1158 | ||
1159 | AliWarning("This is the ESD mass. Use it with care !"); | |
1160 | return GetMass(); | |
1161 | } | |
1162 | ||
1163 | //______________________________________________________________________________ | |
1164 | Double_t AliESDtrack::E() const | |
1165 | { | |
1166 | // Returns the energy of the particle given its assumed mass. | |
1167 | // Assumes the pion mass if the particle can't be identified properly. | |
1168 | ||
1169 | Double_t m = M(); | |
1170 | Double_t p = P(); | |
1171 | return TMath::Sqrt(p*p + m*m); | |
1172 | } | |
1173 | ||
1174 | //______________________________________________________________________________ | |
1175 | Double_t AliESDtrack::Y() const | |
1176 | { | |
1177 | // Returns the rapidity of a particle given its assumed mass. | |
1178 | // Assumes the pion mass if the particle can't be identified properly. | |
1179 | ||
1180 | Double_t e = E(); | |
1181 | Double_t pz = Pz(); | |
1182 | if (e != TMath::Abs(pz)) { // energy was not equal to pz | |
1183 | return 0.5*TMath::Log((e+pz)/(e-pz)); | |
1184 | } else { // energy was equal to pz | |
1185 | return -999.; | |
1186 | } | |
1187 | } | |
1188 | ||
1189 | //_______________________________________________________________________ | |
1190 | Bool_t AliESDtrack::UpdateTrackParams(const AliKalmanTrack *t, ULong_t flags){ | |
1191 | // | |
1192 | // This function updates track's running parameters | |
1193 | // | |
1194 | Bool_t rc=kTRUE; | |
1195 | ||
1196 | SetStatus(flags); | |
1197 | fLabel=t->GetLabel(); | |
1198 | ||
1199 | if (t->IsStartedTimeIntegral()) { | |
1200 | SetStatus(kTIME); | |
1201 | Double_t times[10];t->GetIntegratedTimes(times); SetIntegratedTimes(times); | |
1202 | SetIntegratedLength(t->GetIntegratedLength()); | |
1203 | } | |
1204 | ||
1205 | Set(t->GetX(),t->GetAlpha(),t->GetParameter(),t->GetCovariance()); | |
1206 | if (flags==kITSout) fFriendTrack->SetITSOut(*t); | |
1207 | if (flags==kTPCout) fFriendTrack->SetTPCOut(*t); | |
1208 | if (flags==kTRDrefit) fFriendTrack->SetTRDIn(*t); | |
1209 | ||
1210 | switch (flags) { | |
1211 | ||
1212 | case kITSin: case kITSout: case kITSrefit: | |
1213 | { | |
1214 | fITSClusterMap=0; | |
1215 | fITSncls=t->GetNumberOfClusters(); | |
1216 | Int_t* indexITS = new Int_t[AliESDfriendTrack::kMaxITScluster]; | |
1217 | for (Int_t i=0;i<AliESDfriendTrack::kMaxITScluster;i++) { | |
1218 | indexITS[i]=t->GetClusterIndex(i); | |
1219 | ||
1220 | if (i<fITSncls) { | |
1221 | Int_t l=(indexITS[i] & 0xf0000000) >> 28; | |
1222 | SETBIT(fITSClusterMap,l); | |
1223 | } | |
1224 | } | |
1225 | fFriendTrack->SetITSIndices(indexITS,AliESDfriendTrack::kMaxITScluster); | |
1226 | delete [] indexITS; | |
1227 | ||
1228 | fITSchi2=t->GetChi2(); | |
1229 | fITSsignal=t->GetPIDsignal(); | |
1230 | fITSLabel = t->GetLabel(); | |
1231 | // keep in fOp the parameters outside ITS for ITS stand-alone tracks | |
1232 | if (flags==kITSout) { | |
1233 | if (!fOp) fOp=new AliExternalTrackParam(*t); | |
1234 | else | |
1235 | fOp->Set(t->GetX(),t->GetAlpha(),t->GetParameter(),t->GetCovariance()); | |
1236 | } | |
1237 | } | |
1238 | break; | |
1239 | ||
1240 | case kTPCin: case kTPCrefit: | |
1241 | { | |
1242 | fTPCLabel = t->GetLabel(); | |
1243 | if (flags==kTPCin) { | |
1244 | fTPCInner=new AliExternalTrackParam(*t); | |
1245 | fTPCnclsIter1=t->GetNumberOfClusters(); | |
1246 | fTPCchi2Iter1=t->GetChi2(); | |
1247 | } | |
1248 | if (!fIp) fIp=new AliExternalTrackParam(*t); | |
1249 | else | |
1250 | fIp->Set(t->GetX(),t->GetAlpha(),t->GetParameter(),t->GetCovariance()); | |
1251 | } | |
1252 | case kTPCout: | |
1253 | { | |
1254 | Int_t* indexTPC = new Int_t[AliESDfriendTrack::kMaxTPCcluster]; | |
1255 | if (flags & kTPCout){ | |
1256 | if (!fOp) fOp=new AliExternalTrackParam(*t); | |
1257 | else | |
1258 | fOp->Set(t->GetX(),t->GetAlpha(),t->GetParameter(),t->GetCovariance()); | |
1259 | } | |
1260 | fTPCncls=t->GetNumberOfClusters(); | |
1261 | fTPCchi2=t->GetChi2(); | |
1262 | ||
1263 | {//prevrow must be declared in separate namespace, otherwise compiler cries: | |
1264 | //"jump to case label crosses initialization of `Int_t prevrow'" | |
1265 | Int_t prevrow = -1; | |
1266 | // for (Int_t i=0;i<fTPCncls;i++) | |
1267 | for (Int_t i=0;i<AliESDfriendTrack::kMaxTPCcluster;i++) | |
1268 | { | |
1269 | indexTPC[i]=t->GetClusterIndex(i); | |
1270 | Int_t idx = indexTPC[i]; | |
1271 | ||
1272 | if (idx<0) continue; | |
1273 | ||
1274 | // Piotr's Cluster Map for HBT | |
1275 | // ### please change accordingly if cluster array is changing | |
1276 | // to "New TPC Tracking" style (with gaps in array) | |
1277 | Int_t sect = (idx&0xff000000)>>24; | |
1278 | Int_t row = (idx&0x00ff0000)>>16; | |
1279 | if (sect > 18) row +=63; //if it is outer sector, add number of inner sectors | |
1280 | ||
1281 | fTPCClusterMap.SetBitNumber(row,kTRUE); | |
1282 | ||
1283 | //Fill the gap between previous row and this row with 0 bits | |
1284 | //In case ### pleas change it as well - just set bit 0 in case there | |
1285 | //is no associated clusters for current "i" | |
1286 | if (prevrow < 0) | |
1287 | { | |
1288 | prevrow = row;//if previous bit was not assigned yet == this is the first one | |
1289 | } | |
1290 | else | |
1291 | { //we don't know the order (inner to outer or reverse) | |
1292 | //just to be save in case it is going to change | |
1293 | Int_t n = 0, m = 0; | |
1294 | if (prevrow < row) | |
1295 | { | |
1296 | n = prevrow; | |
1297 | m = row; | |
1298 | } | |
1299 | else | |
1300 | { | |
1301 | n = row; | |
1302 | m = prevrow; | |
1303 | } | |
1304 | ||
1305 | for (Int_t j = n+1; j < m; j++) | |
1306 | { | |
1307 | fTPCClusterMap.SetBitNumber(j,kFALSE); | |
1308 | } | |
1309 | prevrow = row; | |
1310 | } | |
1311 | // End Of Piotr's Cluster Map for HBT | |
1312 | } | |
1313 | fFriendTrack->SetTPCIndices(indexTPC,AliESDfriendTrack::kMaxTPCcluster); | |
1314 | delete [] indexTPC; | |
1315 | ||
1316 | } | |
1317 | fTPCsignal=t->GetPIDsignal(); | |
1318 | } | |
1319 | break; | |
1320 | ||
1321 | case kTRDin: case kTRDrefit: | |
1322 | break; | |
1323 | case kTRDout: | |
1324 | { | |
1325 | fTRDLabel = t->GetLabel(); | |
1326 | fTRDchi2 = t->GetChi2(); | |
1327 | fTRDncls = t->GetNumberOfClusters(); | |
1328 | Int_t* indexTRD = new Int_t[AliESDfriendTrack::kMaxTRDcluster]; | |
1329 | for (Int_t i=0;i<AliESDfriendTrack::kMaxTRDcluster;i++) indexTRD[i]=-2; | |
1330 | for (Int_t i=0;i<6;i++) indexTRD[i]=t->GetTrackletIndex(i); | |
1331 | fFriendTrack->SetTRDIndices(indexTRD,AliESDfriendTrack::kMaxTRDcluster); | |
1332 | delete [] indexTRD; | |
1333 | ||
1334 | ||
1335 | fTRDsignal=t->GetPIDsignal(); | |
1336 | } | |
1337 | break; | |
1338 | case kTRDbackup: | |
1339 | if (!fOp) fOp=new AliExternalTrackParam(*t); | |
1340 | else | |
1341 | fOp->Set(t->GetX(),t->GetAlpha(),t->GetParameter(),t->GetCovariance()); | |
1342 | fTRDncls0 = t->GetNumberOfClusters(); | |
1343 | break; | |
1344 | case kTOFin: | |
1345 | break; | |
1346 | case kTOFout: | |
1347 | break; | |
1348 | case kTRDStop: | |
1349 | break; | |
1350 | case kHMPIDout: | |
1351 | if (!fHMPIDp) fHMPIDp=new AliExternalTrackParam(*t); | |
1352 | else | |
1353 | fHMPIDp->Set(t->GetX(),t->GetAlpha(),t->GetParameter(),t->GetCovariance()); | |
1354 | break; | |
1355 | default: | |
1356 | AliError("Wrong flag !"); | |
1357 | return kFALSE; | |
1358 | } | |
1359 | ||
1360 | return rc; | |
1361 | } | |
1362 | ||
1363 | //_______________________________________________________________________ | |
1364 | void AliESDtrack::GetExternalParameters(Double_t &x, Double_t p[5]) const { | |
1365 | //--------------------------------------------------------------------- | |
1366 | // This function returns external representation of the track parameters | |
1367 | //--------------------------------------------------------------------- | |
1368 | x=GetX(); | |
1369 | for (Int_t i=0; i<5; i++) p[i]=GetParameter()[i]; | |
1370 | } | |
1371 | ||
1372 | //_______________________________________________________________________ | |
1373 | void AliESDtrack::GetExternalCovariance(Double_t cov[15]) const { | |
1374 | //--------------------------------------------------------------------- | |
1375 | // This function returns external representation of the cov. matrix | |
1376 | //--------------------------------------------------------------------- | |
1377 | for (Int_t i=0; i<15; i++) cov[i]=AliExternalTrackParam::GetCovariance()[i]; | |
1378 | } | |
1379 | ||
1380 | //_______________________________________________________________________ | |
1381 | Bool_t AliESDtrack::GetConstrainedExternalParameters | |
1382 | (Double_t &alpha, Double_t &x, Double_t p[5]) const { | |
1383 | //--------------------------------------------------------------------- | |
1384 | // This function returns the constrained external track parameters | |
1385 | //--------------------------------------------------------------------- | |
1386 | if (!fCp) return kFALSE; | |
1387 | alpha=fCp->GetAlpha(); | |
1388 | x=fCp->GetX(); | |
1389 | for (Int_t i=0; i<5; i++) p[i]=fCp->GetParameter()[i]; | |
1390 | return kTRUE; | |
1391 | } | |
1392 | ||
1393 | //_______________________________________________________________________ | |
1394 | Bool_t | |
1395 | AliESDtrack::GetConstrainedExternalCovariance(Double_t c[15]) const { | |
1396 | //--------------------------------------------------------------------- | |
1397 | // This function returns the constrained external cov. matrix | |
1398 | //--------------------------------------------------------------------- | |
1399 | if (!fCp) return kFALSE; | |
1400 | for (Int_t i=0; i<15; i++) c[i]=fCp->GetCovariance()[i]; | |
1401 | return kTRUE; | |
1402 | } | |
1403 | ||
1404 | Bool_t | |
1405 | AliESDtrack::GetInnerExternalParameters | |
1406 | (Double_t &alpha, Double_t &x, Double_t p[5]) const { | |
1407 | //--------------------------------------------------------------------- | |
1408 | // This function returns external representation of the track parameters | |
1409 | // at the inner layer of TPC | |
1410 | //--------------------------------------------------------------------- | |
1411 | if (!fIp) return kFALSE; | |
1412 | alpha=fIp->GetAlpha(); | |
1413 | x=fIp->GetX(); | |
1414 | for (Int_t i=0; i<5; i++) p[i]=fIp->GetParameter()[i]; | |
1415 | return kTRUE; | |
1416 | } | |
1417 | ||
1418 | Bool_t | |
1419 | AliESDtrack::GetInnerExternalCovariance(Double_t cov[15]) const { | |
1420 | //--------------------------------------------------------------------- | |
1421 | // This function returns external representation of the cov. matrix | |
1422 | // at the inner layer of TPC | |
1423 | //--------------------------------------------------------------------- | |
1424 | if (!fIp) return kFALSE; | |
1425 | for (Int_t i=0; i<15; i++) cov[i]=fIp->GetCovariance()[i]; | |
1426 | return kTRUE; | |
1427 | } | |
1428 | ||
1429 | void | |
1430 | AliESDtrack::SetOuterParam(const AliExternalTrackParam *p, ULong_t flags) { | |
1431 | // | |
1432 | // This is a direct setter for the outer track parameters | |
1433 | // | |
1434 | SetStatus(flags); | |
1435 | if (fOp) delete fOp; | |
1436 | fOp=new AliExternalTrackParam(*p); | |
1437 | } | |
1438 | ||
1439 | void | |
1440 | AliESDtrack::SetOuterHmpParam(const AliExternalTrackParam *p, ULong_t flags) { | |
1441 | // | |
1442 | // This is a direct setter for the outer track parameters | |
1443 | // | |
1444 | SetStatus(flags); | |
1445 | if (fHMPIDp) delete fHMPIDp; | |
1446 | fHMPIDp=new AliExternalTrackParam(*p); | |
1447 | } | |
1448 | ||
1449 | Bool_t | |
1450 | AliESDtrack::GetOuterExternalParameters | |
1451 | (Double_t &alpha, Double_t &x, Double_t p[5]) const { | |
1452 | //--------------------------------------------------------------------- | |
1453 | // This function returns external representation of the track parameters | |
1454 | // at the inner layer of TRD | |
1455 | //--------------------------------------------------------------------- | |
1456 | if (!fOp) return kFALSE; | |
1457 | alpha=fOp->GetAlpha(); | |
1458 | x=fOp->GetX(); | |
1459 | for (Int_t i=0; i<5; i++) p[i]=fOp->GetParameter()[i]; | |
1460 | return kTRUE; | |
1461 | } | |
1462 | ||
1463 | Bool_t | |
1464 | AliESDtrack::GetOuterHmpExternalParameters | |
1465 | (Double_t &alpha, Double_t &x, Double_t p[5]) const { | |
1466 | //--------------------------------------------------------------------- | |
1467 | // This function returns external representation of the track parameters | |
1468 | // at the inner layer of TRD | |
1469 | //--------------------------------------------------------------------- | |
1470 | if (!fHMPIDp) return kFALSE; | |
1471 | alpha=fHMPIDp->GetAlpha(); | |
1472 | x=fHMPIDp->GetX(); | |
1473 | for (Int_t i=0; i<5; i++) p[i]=fHMPIDp->GetParameter()[i]; | |
1474 | return kTRUE; | |
1475 | } | |
1476 | ||
1477 | Bool_t | |
1478 | AliESDtrack::GetOuterExternalCovariance(Double_t cov[15]) const { | |
1479 | //--------------------------------------------------------------------- | |
1480 | // This function returns external representation of the cov. matrix | |
1481 | // at the inner layer of TRD | |
1482 | //--------------------------------------------------------------------- | |
1483 | if (!fOp) return kFALSE; | |
1484 | for (Int_t i=0; i<15; i++) cov[i]=fOp->GetCovariance()[i]; | |
1485 | return kTRUE; | |
1486 | } | |
1487 | ||
1488 | Bool_t | |
1489 | AliESDtrack::GetOuterHmpExternalCovariance(Double_t cov[15]) const { | |
1490 | //--------------------------------------------------------------------- | |
1491 | // This function returns external representation of the cov. matrix | |
1492 | // at the inner layer of TRD | |
1493 | //--------------------------------------------------------------------- | |
1494 | if (!fHMPIDp) return kFALSE; | |
1495 | for (Int_t i=0; i<15; i++) cov[i]=fHMPIDp->GetCovariance()[i]; | |
1496 | return kTRUE; | |
1497 | } | |
1498 | ||
1499 | Int_t AliESDtrack::GetNcls(Int_t idet) const | |
1500 | { | |
1501 | // Get number of clusters by subdetector index | |
1502 | // | |
1503 | Int_t ncls = 0; | |
1504 | switch(idet){ | |
1505 | case 0: | |
1506 | ncls = fITSncls; | |
1507 | break; | |
1508 | case 1: | |
1509 | ncls = fTPCncls; | |
1510 | break; | |
1511 | case 2: | |
1512 | ncls = fTRDncls; | |
1513 | break; | |
1514 | case 3: | |
1515 | if (fTOFindex != -1) | |
1516 | ncls = 1; | |
1517 | break; | |
1518 | case 4: //PHOS | |
1519 | break; | |
1520 | case 5: //HMPID | |
1521 | if ((fHMPIDcluIdx >= 0) && (fHMPIDcluIdx < 7000000)) { | |
1522 | if ((fHMPIDcluIdx%1000000 != 9999) && (fHMPIDcluIdx%1000000 != 99999)) { | |
1523 | ncls = 1; | |
1524 | } | |
1525 | } | |
1526 | break; | |
1527 | default: | |
1528 | break; | |
1529 | } | |
1530 | return ncls; | |
1531 | } | |
1532 | ||
1533 | Int_t AliESDtrack::GetClusters(Int_t idet, Int_t *idx) const | |
1534 | { | |
1535 | // Get cluster index array by subdetector index | |
1536 | // | |
1537 | Int_t ncls = 0; | |
1538 | switch(idet){ | |
1539 | case 0: | |
1540 | ncls = GetITSclusters(idx); | |
1541 | break; | |
1542 | case 1: | |
1543 | ncls = GetTPCclusters(idx); | |
1544 | break; | |
1545 | case 2: | |
1546 | ncls = GetTRDclusters(idx); | |
1547 | break; | |
1548 | case 3: | |
1549 | if (fTOFindex != -1) { | |
1550 | idx[0] = fTOFindex; | |
1551 | ncls = 1; | |
1552 | } | |
1553 | break; | |
1554 | case 4: //PHOS | |
1555 | break; | |
1556 | case 5: | |
1557 | if ((fHMPIDcluIdx >= 0) && (fHMPIDcluIdx < 7000000)) { | |
1558 | if ((fHMPIDcluIdx%1000000 != 9999) && (fHMPIDcluIdx%1000000 != 99999)) { | |
1559 | idx[0] = GetHMPIDcluIdx(); | |
1560 | ncls = 1; | |
1561 | } | |
1562 | } | |
1563 | break; | |
1564 | case 6: //EMCAL | |
1565 | break; | |
1566 | default: | |
1567 | break; | |
1568 | } | |
1569 | return ncls; | |
1570 | } | |
1571 | ||
1572 | //_______________________________________________________________________ | |
1573 | void AliESDtrack::GetIntegratedTimes(Double_t *times) const { | |
1574 | // Returns the array with integrated times for each particle hypothesis | |
1575 | for (Int_t i=0; i<AliPID::kSPECIES; i++) times[i]=fTrackTime[i]; | |
1576 | } | |
1577 | ||
1578 | //_______________________________________________________________________ | |
1579 | void AliESDtrack::SetIntegratedTimes(const Double_t *times) { | |
1580 | // Sets the array with integrated times for each particle hypotesis | |
1581 | for (Int_t i=0; i<AliPID::kSPECIES; i++) fTrackTime[i]=times[i]; | |
1582 | } | |
1583 | ||
1584 | //_______________________________________________________________________ | |
1585 | void AliESDtrack::SetITSpid(const Double_t *p) { | |
1586 | // Sets values for the probability of each particle type (in ITS) | |
1587 | SetPIDValues(fITSr,p,AliPID::kSPECIES); | |
1588 | SetStatus(AliESDtrack::kITSpid); | |
1589 | } | |
1590 | ||
1591 | //_______________________________________________________________________ | |
1592 | void AliESDtrack::GetITSpid(Double_t *p) const { | |
1593 | // Gets the probability of each particle type (in ITS) | |
1594 | for (Int_t i=0; i<AliPID::kSPECIES; i++) p[i]=fITSr[i]; | |
1595 | } | |
1596 | ||
1597 | //_______________________________________________________________________ | |
1598 | Char_t AliESDtrack::GetITSclusters(Int_t *idx) const { | |
1599 | //--------------------------------------------------------------------- | |
1600 | // This function returns indices of the assgined ITS clusters | |
1601 | //--------------------------------------------------------------------- | |
1602 | if (idx) { | |
1603 | Int_t *index=fFriendTrack->GetITSindices(); | |
1604 | for (Int_t i=0; i<AliESDfriendTrack::kMaxITScluster; i++) { | |
1605 | if ( (i>=fITSncls) && (i<6) ) idx[i]=-1; | |
1606 | else { | |
1607 | if (index) { | |
1608 | idx[i]=index[i]; | |
1609 | } | |
1610 | else idx[i]= -2; | |
1611 | } | |
1612 | } | |
1613 | } | |
1614 | return fITSncls; | |
1615 | } | |
1616 | ||
1617 | //_______________________________________________________________________ | |
1618 | Bool_t AliESDtrack::GetITSModuleIndexInfo(Int_t ilayer,Int_t &idet,Int_t &status, | |
1619 | Float_t &xloc,Float_t &zloc) const { | |
1620 | //---------------------------------------------------------------------- | |
1621 | // This function encodes in the module number also the status of cluster association | |
1622 | // "status" can have the following values: | |
1623 | // 1 "found" (cluster is associated), | |
1624 | // 2 "dead" (module is dead from OCDB), | |
1625 | // 3 "skipped" (module or layer forced to be skipped), | |
1626 | // 4 "outinz" (track out of z acceptance), | |
1627 | // 5 "nocls" (no clusters in the road), | |
1628 | // 6 "norefit" (cluster rejected during refit), | |
1629 | // 7 "deadzspd" (holes in z in SPD) | |
1630 | // Also given are the coordinates of the crossing point of track and module | |
1631 | // (in the local module ref. system) | |
1632 | // WARNING: THIS METHOD HAS TO BE SYNCHRONIZED WITH AliITStrackV2::GetModuleIndexInfo()! | |
1633 | //---------------------------------------------------------------------- | |
1634 | ||
1635 | if(fITSModule[ilayer]==-1) { | |
1636 | idet = -1; | |
1637 | status=0; | |
1638 | xloc=-99.; zloc=-99.; | |
1639 | return kFALSE; | |
1640 | } | |
1641 | ||
1642 | Int_t module = fITSModule[ilayer]; | |
1643 | ||
1644 | idet = Int_t(module/1000000); | |
1645 | ||
1646 | module -= idet*1000000; | |
1647 | ||
1648 | status = Int_t(module/100000); | |
1649 | ||
1650 | module -= status*100000; | |
1651 | ||
1652 | Int_t signs = Int_t(module/10000); | |
1653 | ||
1654 | module-=signs*10000; | |
1655 | ||
1656 | Int_t xInt = Int_t(module/100); | |
1657 | module -= xInt*100; | |
1658 | ||
1659 | Int_t zInt = module; | |
1660 | ||
1661 | if(signs==1) { xInt*=1; zInt*=1; } | |
1662 | if(signs==2) { xInt*=1; zInt*=-1; } | |
1663 | if(signs==3) { xInt*=-1; zInt*=1; } | |
1664 | if(signs==4) { xInt*=-1; zInt*=-1; } | |
1665 | ||
1666 | xloc = 0.1*(Float_t)xInt; | |
1667 | zloc = 0.1*(Float_t)zInt; | |
1668 | ||
1669 | if(status==4) idet = -1; | |
1670 | ||
1671 | return kTRUE; | |
1672 | } | |
1673 | ||
1674 | //_______________________________________________________________________ | |
1675 | UShort_t AliESDtrack::GetTPCclusters(Int_t *idx) const { | |
1676 | //--------------------------------------------------------------------- | |
1677 | // This function returns indices of the assgined ITS clusters | |
1678 | //--------------------------------------------------------------------- | |
1679 | if (idx) { | |
1680 | Int_t *index=fFriendTrack->GetTPCindices(); | |
1681 | ||
1682 | if (index){ | |
1683 | for (Int_t i=0; i<AliESDfriendTrack::kMaxTPCcluster; i++) idx[i]=index[i]; | |
1684 | } | |
1685 | else { | |
1686 | for (Int_t i=0; i<AliESDfriendTrack::kMaxTPCcluster; i++) idx[i]=-2; | |
1687 | } | |
1688 | } | |
1689 | return fTPCncls; | |
1690 | } | |
1691 | ||
1692 | Double_t AliESDtrack::GetTPCdensity(Int_t row0, Int_t row1) const{ | |
1693 | // | |
1694 | // GetDensity of the clusters on given region between row0 and row1 | |
1695 | // Dead zone effect takin into acoount | |
1696 | // | |
1697 | Int_t good = 0; | |
1698 | Int_t found = 0; | |
1699 | // | |
1700 | Int_t *index=fFriendTrack->GetTPCindices(); | |
1701 | for (Int_t i=row0;i<=row1;i++){ | |
1702 | Int_t idx = index[i]; | |
1703 | if (idx!=-1) good++; // track outside of dead zone | |
1704 | if (idx>0) found++; | |
1705 | } | |
1706 | Float_t density=0.5; | |
1707 | if (good>(row1-row0)*0.5) density = Float_t(found)/Float_t(good); | |
1708 | return density; | |
1709 | } | |
1710 | ||
1711 | //_______________________________________________________________________ | |
1712 | void AliESDtrack::SetTPCpid(const Double_t *p) { | |
1713 | // Sets values for the probability of each particle type (in TPC) | |
1714 | SetPIDValues(fTPCr,p,AliPID::kSPECIES); | |
1715 | SetStatus(AliESDtrack::kTPCpid); | |
1716 | } | |
1717 | ||
1718 | //_______________________________________________________________________ | |
1719 | void AliESDtrack::GetTPCpid(Double_t *p) const { | |
1720 | // Gets the probability of each particle type (in TPC) | |
1721 | for (Int_t i=0; i<AliPID::kSPECIES; i++) p[i]=fTPCr[i]; | |
1722 | } | |
1723 | ||
1724 | //_______________________________________________________________________ | |
1725 | UChar_t AliESDtrack::GetTRDclusters(Int_t *idx) const { | |
1726 | //--------------------------------------------------------------------- | |
1727 | // This function returns indices of the assgined TRD clusters | |
1728 | //--------------------------------------------------------------------- | |
1729 | if (idx) { | |
1730 | Int_t *index=fFriendTrack->GetTRDindices(); | |
1731 | ||
1732 | if (index) { | |
1733 | for (Int_t i=0; i<AliESDfriendTrack::kMaxTRDcluster; i++) idx[i]=index[i]; | |
1734 | } | |
1735 | else { | |
1736 | for (Int_t i=0; i<AliESDfriendTrack::kMaxTRDcluster; i++) idx[i]=-2; | |
1737 | } | |
1738 | } | |
1739 | return fTRDncls; | |
1740 | } | |
1741 | ||
1742 | //_______________________________________________________________________ | |
1743 | UChar_t AliESDtrack::GetTRDtracklets(Int_t *idx) const { | |
1744 | // | |
1745 | // This function returns the number of TRD tracklets used in tracking | |
1746 | // and it fills the indices of these tracklets in the array "idx" as they | |
1747 | // are registered in the TRD track list. | |
1748 | // | |
1749 | // Caution : | |
1750 | // 1. The idx array has to be allocated with a size >= AliESDtrack::kTRDnPlanes | |
1751 | // 2. The idx array store not only the index but also the layer of the tracklet. | |
1752 | // Therefore tracks with TRD gaps contain default values for indices [-1] | |
1753 | ||
1754 | if (!idx) return GetTRDntracklets(); | |
1755 | Int_t *index=fFriendTrack->GetTRDindices(); | |
1756 | Int_t n = 0; | |
1757 | for (Int_t i=0; i<kTRDnPlanes; i++){ | |
1758 | if (index){ | |
1759 | if(index[i]>=0) n++; | |
1760 | idx[i]=index[i]; | |
1761 | } | |
1762 | else idx[i] = -2; | |
1763 | } | |
1764 | return n; | |
1765 | } | |
1766 | ||
1767 | //_______________________________________________________________________ | |
1768 | void AliESDtrack::SetTRDpid(const Double_t *p) { | |
1769 | // Sets values for the probability of each particle type (in TRD) | |
1770 | SetPIDValues(fTRDr,p,AliPID::kSPECIES); | |
1771 | SetStatus(AliESDtrack::kTRDpid); | |
1772 | } | |
1773 | ||
1774 | //_______________________________________________________________________ | |
1775 | void AliESDtrack::GetTRDpid(Double_t *p) const { | |
1776 | // Gets the probability of each particle type (in TRD) | |
1777 | for (Int_t i=0; i<AliPID::kSPECIES; i++) p[i]=fTRDr[i]; | |
1778 | } | |
1779 | ||
1780 | //_______________________________________________________________________ | |
1781 | void AliESDtrack::SetTRDpid(Int_t iSpecies, Float_t p) | |
1782 | { | |
1783 | // Sets the probability of particle type iSpecies to p (in TRD) | |
1784 | fTRDr[iSpecies] = p; | |
1785 | } | |
1786 | ||
1787 | Double_t AliESDtrack::GetTRDpid(Int_t iSpecies) const | |
1788 | { | |
1789 | // Returns the probability of particle type iSpecies (in TRD) | |
1790 | return fTRDr[iSpecies]; | |
1791 | } | |
1792 | ||
1793 | //____________________________________________________ | |
1794 | Int_t AliESDtrack::GetNumberOfTRDslices() const | |
1795 | { | |
1796 | // built in backward compatibility | |
1797 | Int_t idx = fTRDnSlices - (kTRDnPlanes<<1); | |
1798 | return idx<18 ? fTRDnSlices/kTRDnPlanes : idx/kTRDnPlanes; | |
1799 | } | |
1800 | ||
1801 | //____________________________________________________ | |
1802 | Double_t AliESDtrack::GetTRDmomentum(Int_t plane, Double_t *sp) const | |
1803 | { | |
1804 | //Returns momentum estimation and optional its error (sp) | |
1805 | // in TRD layer "plane". | |
1806 | ||
1807 | if (!fTRDnSlices) { | |
1808 | AliError("No TRD info allocated for this track !"); | |
1809 | return -1.; | |
1810 | } | |
1811 | if ((plane<0) || (plane>=kTRDnPlanes)) { | |
1812 | AliError("Info for TRD plane not available!"); | |
1813 | return -1.; | |
1814 | } | |
1815 | ||
1816 | Int_t idx = fTRDnSlices-(kTRDnPlanes<<1)+plane; | |
1817 | // Protection for backward compatibility | |
1818 | if(idx<(GetNumberOfTRDslices()*kTRDnPlanes)) return -1.; | |
1819 | ||
1820 | if(sp) (*sp) = fTRDslices[idx+kTRDnPlanes]; | |
1821 | return fTRDslices[idx]; | |
1822 | } | |
1823 | ||
1824 | //____________________________________________________ | |
1825 | Double_t AliESDtrack::GetTRDslice(Int_t plane, Int_t slice) const { | |
1826 | //Gets the charge from the slice of the plane | |
1827 | ||
1828 | if(!fTRDslices) { | |
1829 | //AliError("No TRD slices allocated for this track !"); | |
1830 | return -1.; | |
1831 | } | |
1832 | if ((plane<0) || (plane>=kTRDnPlanes)) { | |
1833 | AliError("Info for TRD plane not available !"); | |
1834 | return -1.; | |
1835 | } | |
1836 | Int_t ns=GetNumberOfTRDslices(); | |
1837 | if ((slice<-1) || (slice>=ns)) { | |
1838 | //AliError("Wrong TRD slice !"); | |
1839 | return -1.; | |
1840 | } | |
1841 | ||
1842 | if(slice>=0) return fTRDslices[plane*ns + slice]; | |
1843 | ||
1844 | // return average of the dEdx measurements | |
1845 | Double_t q=0.; Double32_t *s = &fTRDslices[plane*ns]; | |
1846 | for (Int_t i=0; i<ns; i++, s++) if((*s)>0.) q+=(*s); | |
1847 | return q/ns; | |
1848 | } | |
1849 | ||
1850 | //____________________________________________________ | |
1851 | void AliESDtrack::SetNumberOfTRDslices(Int_t n) { | |
1852 | //Sets the number of slices used for PID | |
1853 | if (fTRDnSlices) return; | |
1854 | ||
1855 | fTRDnSlices=n; | |
1856 | fTRDslices=new Double32_t[fTRDnSlices]; | |
1857 | ||
1858 | // set-up correctly the allocated memory | |
1859 | memset(fTRDslices, 0, n*sizeof(Double32_t)); | |
1860 | for (Int_t i=GetNumberOfTRDslices(); i--;) fTRDslices[i]=-1.; | |
1861 | } | |
1862 | ||
1863 | //____________________________________________________ | |
1864 | void AliESDtrack::SetTRDslice(Double_t q, Int_t plane, Int_t slice) { | |
1865 | //Sets the charge q in the slice of the plane | |
1866 | if(!fTRDslices) { | |
1867 | AliError("No TRD slices allocated for this track !"); | |
1868 | return; | |
1869 | } | |
1870 | if ((plane<0) || (plane>=kTRDnPlanes)) { | |
1871 | AliError("Info for TRD plane not allocated !"); | |
1872 | return; | |
1873 | } | |
1874 | Int_t ns=GetNumberOfTRDslices(); | |
1875 | if ((slice<0) || (slice>=ns)) { | |
1876 | AliError("Wrong TRD slice !"); | |
1877 | return; | |
1878 | } | |
1879 | Int_t n=plane*ns + slice; | |
1880 | fTRDslices[n]=q; | |
1881 | } | |
1882 | ||
1883 | ||
1884 | //____________________________________________________ | |
1885 | void AliESDtrack::SetTRDmomentum(Double_t p, Int_t plane, Double_t *sp) | |
1886 | { | |
1887 | if(!fTRDslices) { | |
1888 | AliError("No TRD slices allocated for this track !"); | |
1889 | return; | |
1890 | } | |
1891 | if ((plane<0) || (plane>=kTRDnPlanes)) { | |
1892 | AliError("Info for TRD plane not allocated !"); | |
1893 | return; | |
1894 | } | |
1895 | ||
1896 | Int_t idx = fTRDnSlices-(kTRDnPlanes<<1)+plane; | |
1897 | // Protection for backward compatibility | |
1898 | if(idx<GetNumberOfTRDslices()*kTRDnPlanes) return; | |
1899 | ||
1900 | if(sp) fTRDslices[idx+kTRDnPlanes] = (*sp); | |
1901 | fTRDslices[idx] = p; | |
1902 | } | |
1903 | ||
1904 | ||
1905 | //_______________________________________________________________________ | |
1906 | void AliESDtrack::SetTOFpid(const Double_t *p) { | |
1907 | // Sets the probability of each particle type (in TOF) | |
1908 | SetPIDValues(fTOFr,p,AliPID::kSPECIES); | |
1909 | SetStatus(AliESDtrack::kTOFpid); | |
1910 | } | |
1911 | ||
1912 | //_______________________________________________________________________ | |
1913 | void AliESDtrack::SetTOFLabel(const Int_t *p) { | |
1914 | // Sets (in TOF) | |
1915 | for (Int_t i=0; i<3; i++) fTOFLabel[i]=p[i]; | |
1916 | } | |
1917 | ||
1918 | //_______________________________________________________________________ | |
1919 | void AliESDtrack::GetTOFpid(Double_t *p) const { | |
1920 | // Gets probabilities of each particle type (in TOF) | |
1921 | for (Int_t i=0; i<AliPID::kSPECIES; i++) p[i]=fTOFr[i]; | |
1922 | } | |
1923 | ||
1924 | //_______________________________________________________________________ | |
1925 | void AliESDtrack::GetTOFLabel(Int_t *p) const { | |
1926 | // Gets (in TOF) | |
1927 | for (Int_t i=0; i<3; i++) p[i]=fTOFLabel[i]; | |
1928 | } | |
1929 | ||
1930 | //_______________________________________________________________________ | |
1931 | void AliESDtrack::GetTOFInfo(Float_t *info) const { | |
1932 | // Gets (in TOF) | |
1933 | for (Int_t i=0; i<10; i++) info[i]=fTOFInfo[i]; | |
1934 | } | |
1935 | ||
1936 | //_______________________________________________________________________ | |
1937 | void AliESDtrack::SetTOFInfo(Float_t*info) { | |
1938 | // Gets (in TOF) | |
1939 | for (Int_t i=0; i<10; i++) fTOFInfo[i]=info[i]; | |
1940 | } | |
1941 | ||
1942 | ||
1943 | ||
1944 | //_______________________________________________________________________ | |
1945 | void AliESDtrack::SetHMPIDpid(const Double_t *p) { | |
1946 | // Sets the probability of each particle type (in HMPID) | |
1947 | SetPIDValues(fHMPIDr,p,AliPID::kSPECIES); | |
1948 | SetStatus(AliESDtrack::kHMPIDpid); | |
1949 | } | |
1950 | ||
1951 | //_______________________________________________________________________ | |
1952 | void AliESDtrack::GetHMPIDpid(Double_t *p) const { | |
1953 | // Gets probabilities of each particle type (in HMPID) | |
1954 | for (Int_t i=0; i<AliPID::kSPECIES; i++) p[i]=fHMPIDr[i]; | |
1955 | } | |
1956 | ||
1957 | ||
1958 | ||
1959 | //_______________________________________________________________________ | |
1960 | void AliESDtrack::SetESDpid(const Double_t *p) { | |
1961 | // Sets the probability of each particle type for the ESD track | |
1962 | SetPIDValues(fR,p,AliPID::kSPECIES); | |
1963 | SetStatus(AliESDtrack::kESDpid); | |
1964 | } | |
1965 | ||
1966 | //_______________________________________________________________________ | |
1967 | void AliESDtrack::GetESDpid(Double_t *p) const { | |
1968 | // Gets probability of each particle type for the ESD track | |
1969 | for (Int_t i=0; i<AliPID::kSPECIES; i++) p[i]=fR[i]; | |
1970 | } | |
1971 | ||
1972 | //_______________________________________________________________________ | |
1973 | Bool_t AliESDtrack::RelateToVertexTPC(const AliESDVertex *vtx, | |
1974 | Double_t b, Double_t maxd, AliExternalTrackParam *cParam) { | |
1975 | // | |
1976 | // Try to relate the TPC-only track parameters to the vertex "vtx", | |
1977 | // if the (rough) transverse impact parameter is not bigger then "maxd". | |
1978 | // Magnetic field is "b" (kG). | |
1979 | // | |
1980 | // a) The TPC-only paramters are extapolated to the DCA to the vertex. | |
1981 | // b) The impact parameters and their covariance matrix are calculated. | |
1982 | // c) An attempt to constrain the TPC-only params to the vertex is done. | |
1983 | // The constrained params are returned via "cParam". | |
1984 | // | |
1985 | // In the case of success, the returned value is kTRUE | |
1986 | // otherwise, it's kFALSE) | |
1987 | // | |
1988 | ||
1989 | if (!fTPCInner) return kFALSE; | |
1990 | if (!vtx) return kFALSE; | |
1991 | ||
1992 | Double_t dz[2],cov[3]; | |
1993 | if (!fTPCInner->PropagateToDCA(vtx, b, maxd, dz, cov)) return kFALSE; | |
1994 | ||
1995 | fdTPC = dz[0]; | |
1996 | fzTPC = dz[1]; | |
1997 | fCddTPC = cov[0]; | |
1998 | fCdzTPC = cov[1]; | |
1999 | fCzzTPC = cov[2]; | |
2000 | ||
2001 | Double_t covar[6]; vtx->GetCovMatrix(covar); | |
2002 | Double_t p[2]={GetParameter()[0]-dz[0],GetParameter()[1]-dz[1]}; | |
2003 | Double_t c[3]={covar[2],0.,covar[5]}; | |
2004 | ||
2005 | Double_t chi2=GetPredictedChi2(p,c); | |
2006 | if (chi2>kVeryBig) return kFALSE; | |
2007 | ||
2008 | fCchi2TPC=chi2; | |
2009 | ||
2010 | if (!cParam) return kTRUE; | |
2011 | ||
2012 | *cParam = *fTPCInner; | |
2013 | if (!cParam->Update(p,c)) return kFALSE; | |
2014 | ||
2015 | return kTRUE; | |
2016 | } | |
2017 | ||
2018 | //_______________________________________________________________________ | |
2019 | Bool_t AliESDtrack::RelateToVertexTPCBxByBz(const AliESDVertex *vtx, | |
2020 | Double_t b[3], Double_t maxd, AliExternalTrackParam *cParam) { | |
2021 | // | |
2022 | // Try to relate the TPC-only track parameters to the vertex "vtx", | |
2023 | // if the (rough) transverse impact parameter is not bigger then "maxd". | |
2024 | // | |
2025 | // All three components of the magnetic field ,"b[3]" (kG), | |
2026 | // are taken into account. | |
2027 | // | |
2028 | // a) The TPC-only paramters are extapolated to the DCA to the vertex. | |
2029 | // b) The impact parameters and their covariance matrix are calculated. | |
2030 | // c) An attempt to constrain the TPC-only params to the vertex is done. | |
2031 | // The constrained params are returned via "cParam". | |
2032 | // | |
2033 | // In the case of success, the returned value is kTRUE | |
2034 | // otherwise, it's kFALSE) | |
2035 | // | |
2036 | ||
2037 | if (!fTPCInner) return kFALSE; | |
2038 | if (!vtx) return kFALSE; | |
2039 | ||
2040 | Double_t dz[2],cov[3]; | |
2041 | if (!fTPCInner->PropagateToDCABxByBz(vtx, b, maxd, dz, cov)) return kFALSE; | |
2042 | ||
2043 | fdTPC = dz[0]; | |
2044 | fzTPC = dz[1]; | |
2045 | fCddTPC = cov[0]; | |
2046 | fCdzTPC = cov[1]; | |
2047 | fCzzTPC = cov[2]; | |
2048 | ||
2049 | Double_t covar[6]; vtx->GetCovMatrix(covar); | |
2050 | Double_t p[2]={GetParameter()[0]-dz[0],GetParameter()[1]-dz[1]}; | |
2051 | Double_t c[3]={covar[2],0.,covar[5]}; | |
2052 | ||
2053 | Double_t chi2=GetPredictedChi2(p,c); | |
2054 | if (chi2>kVeryBig) return kFALSE; | |
2055 | ||
2056 | fCchi2TPC=chi2; | |
2057 | ||
2058 | if (!cParam) return kTRUE; | |
2059 | ||
2060 | *cParam = *fTPCInner; | |
2061 | if (!cParam->Update(p,c)) return kFALSE; | |
2062 | ||
2063 | return kTRUE; | |
2064 | } | |
2065 | ||
2066 | //_______________________________________________________________________ | |
2067 | Bool_t AliESDtrack::RelateToVertex(const AliESDVertex *vtx, | |
2068 | Double_t b, Double_t maxd, AliExternalTrackParam *cParam) { | |
2069 | // | |
2070 | // Try to relate this track to the vertex "vtx", | |
2071 | // if the (rough) transverse impact parameter is not bigger then "maxd". | |
2072 | // Magnetic field is "b" (kG). | |
2073 | // | |
2074 | // a) The track gets extapolated to the DCA to the vertex. | |
2075 | // b) The impact parameters and their covariance matrix are calculated. | |
2076 | // c) An attempt to constrain this track to the vertex is done. | |
2077 | // The constrained params are returned via "cParam". | |
2078 | // | |
2079 | // In the case of success, the returned value is kTRUE | |
2080 | // (otherwise, it's kFALSE) | |
2081 | // | |
2082 | ||
2083 | if (!vtx) return kFALSE; | |
2084 | ||
2085 | Double_t dz[2],cov[3]; | |
2086 | if (!PropagateToDCA(vtx, b, maxd, dz, cov)) return kFALSE; | |
2087 | ||
2088 | fD = dz[0]; | |
2089 | fZ = dz[1]; | |
2090 | fCdd = cov[0]; | |
2091 | fCdz = cov[1]; | |
2092 | fCzz = cov[2]; | |
2093 | ||
2094 | Double_t covar[6]; vtx->GetCovMatrix(covar); | |
2095 | Double_t p[2]={GetParameter()[0]-dz[0],GetParameter()[1]-dz[1]}; | |
2096 | Double_t c[3]={covar[2],0.,covar[5]}; | |
2097 | ||
2098 | Double_t chi2=GetPredictedChi2(p,c); | |
2099 | if (chi2>kVeryBig) return kFALSE; | |
2100 | ||
2101 | fCchi2=chi2; | |
2102 | ||
2103 | ||
2104 | //--- Could now these lines be removed ? --- | |
2105 | delete fCp; | |
2106 | fCp=new AliExternalTrackParam(*this); | |
2107 | ||
2108 | if (!fCp->Update(p,c)) {delete fCp; fCp=0; return kFALSE;} | |
2109 | //---------------------------------------- | |
2110 | ||
2111 | fVertexID = vtx->GetID(); | |
2112 | ||
2113 | if (!cParam) return kTRUE; | |
2114 | ||
2115 | *cParam = *this; | |
2116 | if (!cParam->Update(p,c)) return kFALSE; | |
2117 | ||
2118 | return kTRUE; | |
2119 | } | |
2120 | ||
2121 | //_______________________________________________________________________ | |
2122 | Bool_t AliESDtrack::RelateToVertexBxByBz(const AliESDVertex *vtx, | |
2123 | Double_t b[3], Double_t maxd, AliExternalTrackParam *cParam) { | |
2124 | // | |
2125 | // Try to relate this track to the vertex "vtx", | |
2126 | // if the (rough) transverse impact parameter is not bigger then "maxd". | |
2127 | // Magnetic field is "b" (kG). | |
2128 | // | |
2129 | // a) The track gets extapolated to the DCA to the vertex. | |
2130 | // b) The impact parameters and their covariance matrix are calculated. | |
2131 | // c) An attempt to constrain this track to the vertex is done. | |
2132 | // The constrained params are returned via "cParam". | |
2133 | // | |
2134 | // In the case of success, the returned value is kTRUE | |
2135 | // (otherwise, it's kFALSE) | |
2136 | // | |
2137 | ||
2138 | if (!vtx) return kFALSE; | |
2139 | ||
2140 | Double_t dz[2],cov[3]; | |
2141 | if (!PropagateToDCABxByBz(vtx, b, maxd, dz, cov)) return kFALSE; | |
2142 | ||
2143 | fD = dz[0]; | |
2144 | fZ = dz[1]; | |
2145 | fCdd = cov[0]; | |
2146 | fCdz = cov[1]; | |
2147 | fCzz = cov[2]; | |
2148 | ||
2149 | Double_t covar[6]; vtx->GetCovMatrix(covar); | |
2150 | Double_t p[2]={GetParameter()[0]-dz[0],GetParameter()[1]-dz[1]}; | |
2151 | Double_t c[3]={covar[2],0.,covar[5]}; | |
2152 | ||
2153 | Double_t chi2=GetPredictedChi2(p,c); | |
2154 | if (chi2>kVeryBig) return kFALSE; | |
2155 | ||
2156 | fCchi2=chi2; | |
2157 | ||
2158 | ||
2159 | //--- Could now these lines be removed ? --- | |
2160 | delete fCp; | |
2161 | fCp=new AliExternalTrackParam(*this); | |
2162 | ||
2163 | if (!fCp->Update(p,c)) {delete fCp; fCp=0; return kFALSE;} | |
2164 | //---------------------------------------- | |
2165 | ||
2166 | fVertexID = vtx->GetID(); | |
2167 | ||
2168 | if (!cParam) return kTRUE; | |
2169 | ||
2170 | *cParam = *this; | |
2171 | if (!cParam->Update(p,c)) return kFALSE; | |
2172 | ||
2173 | return kTRUE; | |
2174 | } | |
2175 | ||
2176 | //_______________________________________________________________________ | |
2177 | void AliESDtrack::Print(Option_t *) const { | |
2178 | // Prints info on the track | |
2179 | AliExternalTrackParam::Print(); | |
2180 | printf("ESD track info\n") ; | |
2181 | Double_t p[AliPID::kSPECIESN] ; | |
2182 | Int_t index = 0 ; | |
2183 | if( IsOn(kITSpid) ){ | |
2184 | printf("From ITS: ") ; | |
2185 | GetITSpid(p) ; | |
2186 | for(index = 0 ; index < AliPID::kSPECIES; index++) | |
2187 | printf("%f, ", p[index]) ; | |
2188 | printf("\n signal = %f\n", GetITSsignal()) ; | |
2189 | } | |
2190 | if( IsOn(kTPCpid) ){ | |
2191 | printf("From TPC: ") ; | |
2192 | GetTPCpid(p) ; | |
2193 | for(index = 0 ; index < AliPID::kSPECIES; index++) | |
2194 | printf("%f, ", p[index]) ; | |
2195 | printf("\n signal = %f\n", GetTPCsignal()) ; | |
2196 | } | |
2197 | if( IsOn(kTRDpid) ){ | |
2198 | printf("From TRD: ") ; | |
2199 | GetTRDpid(p) ; | |
2200 | for(index = 0 ; index < AliPID::kSPECIES; index++) | |
2201 | printf("%f, ", p[index]) ; | |
2202 | printf("\n signal = %f\n", GetTRDsignal()) ; | |
2203 | } | |
2204 | if( IsOn(kTOFpid) ){ | |
2205 | printf("From TOF: ") ; | |
2206 | GetTOFpid(p) ; | |
2207 | for(index = 0 ; index < AliPID::kSPECIES; index++) | |
2208 | printf("%f, ", p[index]) ; | |
2209 | printf("\n signal = %f\n", GetTOFsignal()) ; | |
2210 | } | |
2211 | if( IsOn(kHMPIDpid) ){ | |
2212 | printf("From HMPID: ") ; | |
2213 | GetHMPIDpid(p) ; | |
2214 | for(index = 0 ; index < AliPID::kSPECIES; index++) | |
2215 | printf("%f, ", p[index]) ; | |
2216 | printf("\n signal = %f\n", GetHMPIDsignal()) ; | |
2217 | } | |
2218 | } | |
2219 | ||
2220 | ||
2221 | // | |
2222 | // Draw functionality | |
2223 | // Origin: Marian Ivanov, Marian.Ivanov@cern.ch | |
2224 | // | |
2225 | void AliESDtrack::FillPolymarker(TPolyMarker3D *pol, Float_t magF, Float_t minR, Float_t maxR, Float_t stepR){ | |
2226 | // | |
2227 | // Fill points in the polymarker | |
2228 | // | |
2229 | TObjArray arrayRef; | |
2230 | arrayRef.AddLast(new AliExternalTrackParam(*this)); | |
2231 | if (fIp) arrayRef.AddLast(new AliExternalTrackParam(*fIp)); | |
2232 | if (fOp) arrayRef.AddLast(new AliExternalTrackParam(*fOp)); | |
2233 | if (fHMPIDp) arrayRef.AddLast(new AliExternalTrackParam(*fHMPIDp)); | |
2234 | // | |
2235 | Double_t mpos[3]={0,0,0}; | |
2236 | Int_t entries=arrayRef.GetEntries(); | |
2237 | for (Int_t i=0;i<entries;i++){ | |
2238 | Double_t pos[3]; | |
2239 | ((AliExternalTrackParam*)arrayRef.At(i))->GetXYZ(pos); | |
2240 | mpos[0]+=pos[0]/entries; | |
2241 | mpos[1]+=pos[1]/entries; | |
2242 | mpos[2]+=pos[2]/entries; | |
2243 | } | |
2244 | // Rotate to the mean position | |
2245 | // | |
2246 | Float_t fi= TMath::ATan2(mpos[1],mpos[0]); | |
2247 | for (Int_t i=0;i<entries;i++){ | |
2248 | Bool_t res = ((AliExternalTrackParam*)arrayRef.At(i))->Rotate(fi); | |
2249 | if (!res) delete arrayRef.RemoveAt(i); | |
2250 | } | |
2251 | Int_t counter=0; | |
2252 | for (Double_t r=minR; r<maxR; r+=stepR){ | |
2253 | Double_t sweight=0; | |
2254 | Double_t mlpos[3]={0,0,0}; | |
2255 | for (Int_t i=0;i<entries;i++){ | |
2256 | Double_t point[3]={0,0,0}; | |
2257 | AliExternalTrackParam *param = ((AliExternalTrackParam*)arrayRef.At(i)); | |
2258 | if (!param) continue; | |
2259 | if (param->GetXYZAt(r,magF,point)){ | |
2260 | Double_t weight = 1./(10.+(r-param->GetX())*(r-param->GetX())); | |
2261 | sweight+=weight; | |
2262 | mlpos[0]+=point[0]*weight; | |
2263 | mlpos[1]+=point[1]*weight; | |
2264 | mlpos[2]+=point[2]*weight; | |
2265 | } | |
2266 | } | |
2267 | if (sweight>0){ | |
2268 | mlpos[0]/=sweight; | |
2269 | mlpos[1]/=sweight; | |
2270 | mlpos[2]/=sweight; | |
2271 | pol->SetPoint(counter,mlpos[0],mlpos[1], mlpos[2]); | |
2272 | printf("xyz\t%f\t%f\t%f\n",mlpos[0], mlpos[1],mlpos[2]); | |
2273 | counter++; | |
2274 | } | |
2275 | } | |
2276 | } | |
2277 | ||
2278 | //_______________________________________________________________________ | |
2279 | void AliESDtrack::SetITSdEdxSamples(const Double_t s[4]) { | |
2280 | // | |
2281 | // Store the dE/dx samples measured by the two SSD and two SDD layers. | |
2282 | // These samples are corrected for the track segment length. | |
2283 | // | |
2284 | for (Int_t i=0; i<4; i++) fITSdEdxSamples[i]=s[i]; | |
2285 | } | |
2286 | ||
2287 | //_______________________________________________________________________ | |
2288 | void AliESDtrack::GetITSdEdxSamples(Double_t *s) const { | |
2289 | // | |
2290 | // Get the dE/dx samples measured by the two SSD and two SDD layers. | |
2291 | // These samples are corrected for the track segment length. | |
2292 | // | |
2293 | for (Int_t i=0; i<4; i++) s[i]=fITSdEdxSamples[i]; | |
2294 | } | |
2295 | ||
2296 | ||
2297 | UShort_t AliESDtrack::GetTPCnclsS(Int_t i0,Int_t i1) const{ | |
2298 | // | |
2299 | // get number of shared clusters | |
2300 | // | |
2301 | return fTPCSharedMap.CountBits(i0)-fTPCSharedMap.CountBits(i1); | |
2302 | } |